Challenges and opportunities for implementing evidence-based antenatal care in Mozambique: a qualitative study
- Adriano Biza1,
- Ingeborg Jille-Traas1,
- Mercedes Colomar2,
- Maria Belizan3,
- Jennifer Requejo Harris4,
- Beatrice Crahay1,
- Mario Merialdi5,
- My Huong Nguyen5,
- Fernando Althabe3,
- Alicia Aleman2,
- Eduardo Bergel3,
- Alicia Carbonell6,
- Leonardo Chavane7,
- Therese Delvaux8,
- Diederike Geelhoed1,
- Metin Gülmezoglu5,
- Celsa Regina Malapende9,
- Armando Melo7,
- Nafissa Bique Osman1,
- Mariana Widmer5,
- Marleen Temmerman5 and
- Ana Pilar Betrán5Email author
© Biza et al. 2015
Received: 2 October 2014
Accepted: 17 August 2015
Published: 2 September 2015
Maternal mortality remains a daunting problem in Mozambique and many other low-resource countries. High quality antenatal care (ANC) services can improve maternal and newborn health outcomes and increase the likelihood that women will seek skilled delivery care. This study explores the factors influencing provider uptake of the recommended package of ANC interventions in Mozambique.
This study used qualitative research methods including key informant interviews with stakeholders from the health sector and a total of five focus group discussions with women with experience with ANC or women from the community. Study participants were selected from three health centers located in Maputo city, Tete, and Cabo Delgado provinces in Mozambique. Staff responsible for the medicines/supply chain at national, provincial and district level were interviewed. A check list was implemented to confirm the availability of the supplies required for ANC. Deductive content analysis was conducted.
Three main groups of factors were identified that hinder the implementation of the ANC package in the study setting: a) system or organizational: include chronic supply chain deficiencies, failures in the continuing education system, lack of regular audits and supervision, absence of an efficient patient record system and poor environmental conditions at the health center; b) health care provider factors: such as limited awareness of current clinical guidelines and a resistant attitude to adopting new recommendations; and c) Users: challenges with accessing ANC, poor recognition amongst women about the purpose and importance of the specific interventions provided through ANC, and widespread perception of an unfriendly environment at the health center.
The ANC package in Mozambique is not being fully implemented in the three study facilities, and a major barrier is poor functioning of the supply chain system. Recommendations for improving the implementation of antenatal interventions include ensuring clinical protocols based on the ANC model. Increasing the community understanding of the importance of ANC would improve demand for high quality ANC services. The supply chain functioning could be strengthened through the introduction of a kit system with all the necessary supplies for ANC and a simple monitoring system to track the stock levels is recommended.
Maternal mortality remains a major problem in many resource-poor settings. Estimates show that approximately 289,000 maternal deaths occurred in 2013, 99 % in developing countries. Although this estimate represents a decline of 45 % from 1990 levels, 40 countries, including Mozambique, are still experiencing high levels of maternal mortality (maternal mortality ratio equal to or greater than 300 maternal deaths per 100,000 live births). Mozambique’s maternal mortality ratio was 480 per 100,000 live births in 2013, indicating that urgent efforts are needed if the country is to achieve its Millennium Development Goal 5a target of 258 maternal deaths per 100,000 live births by 2015 and expand access to needed services for all women post-2015 .
Antenatal care (ANC) is an important determinant of safe delivery  and represents a key opportunity for reaching pregnant women with services that can improve their health and the health of their unborn baby . ANC can reduce maternal and perinatal morbidity and mortality directly through the detection and treatment of pregnancy-related illnesses, and indirectly through the identification of women at increased risk of delivery complications [4, 5]. Associations found between ANC utilization and skilled attendance at childbirth also suggest that ANC can improve obstetric outcomes through promotion of skilled delivery care and counseling on birth planning and complication readiness [2, 6, 7].
Elements included in each ANC visit in the context of the ANC package
Elements of ANC
4th ANC and following
1. Clinical physical examination
2. Obstetric examination
3. Measurement of haemoglobin level
From 32 weeks
4. Assessing proteinuria
5. Measurement of blood pressure
6. Performance of syphilis test and treatment
7. Prevention of anaemia and deworming
7.1 Deworming (mebendazole)
7.2 Ferrous sulfate + folic acid
8. Prevention of malaria
8.1 ITP (Sulfadoxine-pyrimethamine)
8.2 Mosquito net
9. HIV testing and counselling
11. Complementary intervention: Provision of ARV treatment
A meeting of experts was convened in Maputo in 2009 by the Ministry of Health, the World Health Organization (WHO), the International Centre for Reproductive Health (ICRH), and the Flanders International Cooperation Agency (FICA) to discuss the country’s early experiences with implementation of the ANC model. Health system deficiencies and lack of motivation and knowledge among care providers were identified as potential determinants of slow uptake of the ANC model.
To further explore these and other underlying factors responsible for the slow roll-out of the ANC model, the WHO, the Ministry of Health of Mozambique and the International Center for Reproductive Health – Mozambique (ICRH-M) launched a two-pronged study in 2010. The formative research component of the study, described in this paper, assessed the views of pregnant women attending ANC and women who had been pregnant recently as well as the views of health care provider on available ANC services, and supply chain factors hindering the implementation of the ANC model. The findings of this study were used to inform the development of an intervention to improve delivery of antenatal care to be assessed through a subsequent randomized controlled trial .
This was a cross-sectional study conducted between May and July 2011 in three health centers located in the provinces of Maputo city, Tete, and Cabo Delgado, each representing a distinct geographical region in Mozambique (south, central, and north). These health centers were purposively selected from among the 10 centers selected by the Ministry of Health for inclusion in the randomized trial. Among the 10 facilities in the trial, these three health centers, Montepuez (North), Matola (South) and Songo (Central) were the third, fifth and tenth in terms of the number of first ANC visits with 4182, 3276 and 1281 visits in 2011 (See Additional file 1). At the time of the study, none of the three facilities were fully implementing the WHO ANC model adapted for the Mozambique context (henceforth called the "ANC model"). Table 1 shows the components of the ANC model.
Data collection methods
Health sector participant category and number of sessions held
Cabo Delgado Province
Number of interviews
Health sector officer at national level (including officers for MCH)
Health sector officer at provincial level (including officers for MCH)
Health sector officer at district level (including officers for MCH)
Supply Chain responsible (all three levels)
Facility or Program responsible
Laboratory (responsible and technical staff)
Number of focus groups (number of participants)
Pregnant women users of ANC care
Women from the community
Three focus groups were conducted with women attending ANC at the time of the study, and two were conducted with women living in surrounding communities who had a recent experience with ANC and delivery services. Women attending ANC at the time of the study were recruited if they had attend at least one ANC visit at the study facilities. Health facility staff assisted in identifying potential study participants until the quota of participants for each focus group was reached. In the surrounding communities, women were identified with the help of community leaders and the permission of district authorities. Focus groups lasted approximately 90 minutes and were held in locations convenient to the participants. Snacks and beverages were offered to participants.
All focus group discussions involved 7 to 13 women and were conducted by a team including a trained facilitator fluent in Portuguese and English, an observer responsible for taking notes (IJT or AB), and a translator of other local languages or dialects to help with communication. Facilitators were selected using the educational level criteria combined with experience in data collection methods through in-depth individual interviews and conducting focus discussions, or experience in community animation (See Additional file 1 for more detailed information on the focus groups and facilitators).
Semi structured interviews were conducted with the following key informants: (i) health sector senior officers at national level in charge of policy and guideline development for maternal, newborn and child health (MNCH) including all aspects of care related to the ANC model; (ii) health sector senior officers at provincial level responsible for providing guidance on the content of MNCH strategies and for monitoring the implementation of health programs at provincial level; (iii) health sector senior officers at district level in charge of supervising the quality of MNCH services including the supply chain management; (iv) Non Governmental Organizations (NGO) representatives engaged in supporting the delivery of maternal and child health (MCH) services and/or supply chain management; (v) staff at national, provincial and district level responsible for supply chain management of medicines and other health commodities needed for ANC services; (vi) MCH nurses responsible for delivering ANC services; and (vii) in each of the selected health centers, staff involved in supply chain management of the medicines and other materials necessary for full implementation of the ANC model.
The interviews were carried out by two investigators (IJT and AB) in locations convenient to the interviewee, and lasted approximately 1 hour. Notes were taken during focus groups and interviews, translated into English, and written up in Microsoft word.
Structured check list
A checklist was used to assess the availability of equipment, medicines and other health commodities needed for full implementation of the ANC package. It was filled out during interviews with responsible staff in ANC consultation rooms, pharmacies, laboratories and storage rooms at the health center level, and by taking an inventory of stocks available in warehouses at the central, provincial, and district level. Registers were checked for information on stock-outs in the past. Two investigators (IJT, AB) worked closely with the staff from the Ministry of Health involved in supply chain management and logistics to examine the stocks in the three selected health centers, as well as central, provincial and district warehouses in order to follow the supply chain from when products arrive in Maputo (central level) to when they reach the health facilities via the provincial and district warehouses.
The study protocol was approved by the Research Project Review Panel of the UNDP/UNFPA/UNICEF/WHO/World Bank Special Programme of Research, Development and Research Training in Human Reproduction at the Department of Reproductive Health and Research of WHO, and the WHO Research Ethics Review Committee, Geneva, Switzerland. The Comité Nacional de Bioética para a Saúde of the Ministry of Health in Mozambique also approved the study. All participants gave their written informed consent.
The guides for the focus groups and interviews were developed based on the study objectives and from other guides used in similar studies that were adapted to the Mozambique context. A deductive content analysis was conducted . This type of analysis consist on classifying the elements of a message in order to arrive to the comprehension of the whole sense, guided by the existing knowledge . As per protocol, the data analysis was performed simultaneously triangulating qualitative data (from discussion groups and individual interviews) with quantitative data (from check list).
The interviews and focus group transcripts were coded simultaneously according to themes and categories based on the interview, focus group questions and study objectives. Matrices were developed to facilitate comparisons across the transcripts material and to retain the context of the data (i.e. which focus group, characteristics of the interviewee) . Finally abstraction and interpretation of data was performed. As part of this analysis, direct quotations representative of participants’ opinions were selected. Quotations were translated from Portuguese to English for the purpose of this article.
The material collected through the checklists was entered into an Excel spreadsheet and simple frequencies were calculated for each variable. To assure the validity of the research, check for consistency in findings across data sources and to capture different dimensions and perspectives of the same phenomenon, all data was triangulated. Triangulation was achieved by using different types of sources of information as well as considering and combining different methodologies, quantitative (use of checklists) and qualitative. The underlying principle of this technique lies in the notion that confidence in the results increases if different methods are used.
The findings identified a number of interrelated factors that may prevent or delay access to ANC, as well as factors that may facilitate its implementation. These factors were organized into three categories: a) system or organizational; b) health provider factors (i.e. knowledge, skills and attitudes); and c) demand-side factors related to women’s use of ANC.
Health system and organizational factors
Organizational or system and health center level factors for the Implementation of ANC model
System or organizational factors
Fragmentation due to multiplicity of supply chains and sub-supply chains
Lack of coordination between levels
Lack of knowledge of the procurement and supply chain management concept
Lack of qualified personnel with experience in supply management
Lack of protocols
Lack of reliable data for supply management
Deficiencies on storage system
Difficulties for the distribution due to transportation deficiencies
Audit and Supervision
Lack of regular supervision and monitoring visits affects the care provided
Health care providers continuing education system
Limited impact of the existing training models on ANC model
Human Resources at health center level
Goods and products at health center level
Lack of supplies
Environment conditions at HC level
Lack of appropriate infrastructure to conduct the interventions of the package in an integrated way
Patient Data Record System at health center level
Deficiencies on record system regarding patients’ information
Absence of training on data collection
Lack of data collection forms
Data recording fragmentation and duplication
Deficiencies on data analysis
Factors related to the health providers knowledge, skills and attitudes
Health providers knowledge and skills
Lack of awareness on guidelines and protocols implementation
Health care provider attitudes
Resistance to follow the procedures
The ANC model requires availability of at least 42 different products at the health center during the first consultation (e.g. medicines, health commodities, equipment and instruments, laboratory reagents and tests). In the three study health centers, 10 different sub-supply chains provide these 42 products. None of the health centers were observed to have all of the required products available at the time of data collection.
The malfunctioning of the supply chain system is related to problems with planning, procurement, storage and distribution of goods. Barriers identified to effective planning and management include (i) fragmentation of the system due to multiplicity of chains and sub-chains; (ii) lack of coordination between each level of the supply chain (i.e. health center, district, provincial and national warehouses) due to communication problems; (iii) lack of supply chain management personnel qualified and experienced resulting in a lack of awareness of procedures; and (iv) lack of defined protocols and instructions for supply chain management.
Basic and general procedures are in place for supply chain management throughout the public health system. However they are not always followed for a variety of reasons. The current system of inventory and record keeping is poorly designed, making it a challenge for health center staff to be able to anticipate needs and to avoid stock outs. Supplies are often not re-ordered until after stock-outs have already occurred. The absence of adequate storage rooms and refrigeration at the health centers also creates problems with ensuring stock of sufficient supplies in appropriate conditions. Transportation services are not properly designated for the distribution of health sector supplies, mainly from the district level to the health centers. Consequently, ambulances, which often breakdown or are required for transport of patients, are unofficially used for this purpose.
"We do not measure the blood pressure because we do not have the device. We have many tensiometers but we do not have the stethoscopes. We only received sphygmomanometer (…) I'm here since February, and we haven´t assessed pregnant women’s blood pressure…" [Nurse at Health Center]
Continuing education system
Those interviewed noted that problems with the continuing education system to help providers stay up-to-date on the latest evidence-based guidelines hinders provider ability to fully implement the ANC model.
The continuing education system was designed as a "training of trainers program". This program focuses on MCH district supervisors, this model is seen by the nurses as exclusionary; it does not cover most of the nurses who directly provide services to users. Those who attend the training sessions do not replicate the trainings at the health center level; they complain on not receiving additional benefits (per diem) for participating on the sessions. Participants highlighted that they don´t find the sessions applicable to their daily practice. Transfer of information from the central level is not conducted systematically leading to insecurity and doubts regarding current care recommendations among health providers. Clinical guidelines and protocol updates are not readily available at peripheral health facilities.
Audit and supervision
Health center informants identified the scarcity of supervision and monitoring visits as a barrier for full implementation of the ANC model. They indicated that the bi-annual supervision visits are not completed as planned. They perceive that increased supervision and training would be useful to refresh their skills, as well as for mentoring purposes and to help them address any difficulties they are facing.
Human resources at health center level
Health care providers stated that they endure a heavy workload and feel overburdened. MCH nurses are expected to deliver many services - ANC, delivery care, postpartum check-ups, family planning, basic emergency obstetric care, and newborn care. This situation is exacerbated at peripheral health centers where there are a single MCH nurse on duty.
For ANC provision, nurses are being asked to provide an increasing number of services during the first visit, which is often the only visit women attend. The limited time assigned for each visit (less than 10 to 15 minutes) results in nurses choosing to provide specific services from the ANC package at the expense of establishing a good rapport with the women and providing adequate counselling (particularly important for prevention of mother to child transmission (PMTCT) of Human Immunodeficiency Virus (HIV) services and syphilis tests). There are also high absenteeism and staff turnover rates, which increases the volume of work for the few remaining skilled and experienced providers.
"To provide the ANC package we experience great staff difficulties. Many clinics have only one nurse to provide antenatal care, so it is difficult to do everything with a desired quality (…) While the problem of human resources is not solved it will be difficult to improve the quality of the ANC provided". [Maternal Health Officer]
Environmental conditions at health center level.
Women identified long waiting times and inadequate infrastructure as barriers to seeking ANC at the health centers. Women reported that they have to wait a long time for ANC due to the absence of an appointment system and shortage of human resources. Nurses typically work in the morning and all ANC consults, therefore, must occur in the morning hours. Women report lack of privacy of the exam rooms for counseling and other ANC services. These conditions also negatively impact the motivation of nurses to provide care.
Patient record system at health center level
Health care providers reported that data were not routinely collected at the health centers because they often run out of data collection tools due to chronic shortages of office supplies. From their perspective, they do not receive the training needed to guarantee good quality of data collection and analysis.
There is an absence of protocols for data analysis, for example, and for sharing clinical results with health care providers and other staff. Moreover, multiple reporting systems co-exist, leading to registration duplicates and inefficiencies in the quality control process.
Factors related to the health care providers’ knowledge, skills, attitudes and behaviors
A summary of provider knowledge, skills, attitudes and behaviors that were identified as influencing successful implementation of the ANC model is presented in Table 3.
Knowledge and skills
Health care providers expressed a lack of awareness of current clinical guidelines and protocols (e.g. screening for HIV and syphilis or deworming protocols). Also, blood samples are often not adequately taken. Providers often take less blood than necessary and/or wait less time than indicated to obtain accurate results for HIV testing. Both situations might lead to invalid test results.
Attitudes, and behaviors
Health care providers are unable to deliver the full ANC package since they cannot establish a routine and effective workflow due to frequent stock outs of different supplies. Health care providers expressed that lack of time impairs their relationships with their clients. Even when the provider is aware of the existence of protocols, lack of time and adequate supervision impinges on their ability to fully implement them.
Authorities stated that health care providers are unmotivated and have a resistant attitude towards their responsibilities. Nurses contend that the circumstances they face in the health system result in negativity and a loss of motivation.
Pregnant women’s barriers and facilitators for the use of ANC
Factor & components
Knowledge and Beliefs: Perceptions on the ANC importance
Not aware of each component value neither its significance, they are lay across beliefs.
It is recognized. Some women seem to be giving up the idea of receiving care at the community level
They seek to "open the record" in order to make easier admission for delivery at health center
Attitudes & Behaviors: Approach to the health system for ANC and delivery
Arrival to ANC care during 2nd and 3rd trimester, due to impossibility to prove the pregnancy
Willingness to deliver at institutional level.
Perception that they will not receive any care until pregnancy is evident.
Distance and lack of transportation prevents accessing to health centers and laboratory
Pregnancy test are not affordable, resulting into late consultation
Lack of integral free treatment to partners for syphilis treatment, prevent women to succeed in treatment
Internal factors: Women’s knowledge and beliefs
"… It is important to know my health and also how the baby is. Sometimes I feel sick and I don´t know what's going on. Nowadays there are many diseases, I´m afraid to have them…" [Focus Group with ANC Users]
When asked about the importance of each of the components of the ANC package, however, women were unable to respond. Women’s beliefs affected their adherence to some of the recommendations in the ANC model. For example, women’s adherence to the full vaccination plan is poor due to their belief that receiving the first dose of tetanus vaccine is sufficient for the wellbeing of the baby and that other doses are not so necessary.
"Most women come to the hospital now, those who do not want to come, trust on their relatives, others trust on the matrons working in neighborhoods" [FGD with ANC Users]
“Some women arrive at the clinic during the second or third month of pregnancy in order to “open the card”. [Nurse at a Health Center]
"Depends… and sometimes varies, but it is not common for a two month pregnant woman to go to the clinic, they must first expect to receive advice at home. (…) According to our tradition we have to wait until the belly is visible, that confirms the pregnancy" [Focus Group with women at the community]
“When they arrive on the second month and we can´t confirm the pregnancy by the physical examination we request them to buy a test at a private pharmacy or come back when the pregnancy is visible. If I can´t feel the pregnancy we can´t open the file because I'm not sure if the woman is pregnant" [Nurse at a Health Center]
There is a tradition that the first delivery should take place at home because it is the opportunity for the primiparous to learn from older and experienced women traditional knowledge regarding maternity. However we have observed that in general, women agree that it is important to give birth at maternities. They noted that women who did not attend ANC –and do not have the ANC registration card– would not dare to go for institutional delivery as they are afraid of being mistreated by the nurses. These women go to the health centers only for the postpartum visit.
External factors: transportation and economic factors
Regarding anemia tests: "We used to have hemoglobinometers but they are broken since March (for more than 3 months at the moment of the interview). Now we send the women to the laboratory, they have the blood extraction there, however many times the results are not collected, it is not easy for the women to return to collect them because of the distance" [Health Center Official]
Furthermore, the success of syphilis treatment ─which is free for pregnant women in Mozambique─ depends on families assuming the cost of treatment for partners in order to avoid reinfection.
This research shows that most of the ten components included in the ANC model are not fully implemented in the three study health centers. A number of contributing supply and demand side factors were identified, including factors related to organizational and structural issues, health care providers, and women’s perceptions of available care. The dysfunction of the public health sector supply chain is an urgent problem that must be prioritized for action since the implementation of the ANC model depends fundamentally upon the availability of a large package of specific supplies. Supply chain problems identified include poor coordination across and within levels of the health system; fragmentation of supply lines; lack of qualified and experienced staff; absence of clear protocols at each level; lack of reliable data for tracking and recording supplies; and deficiencies in transportation and health centers’ storage facilities.
Cultural beliefs coupled with the lack of pregnancy tests at health facilities influence women’s decision on when to seek ANC during pregnancy, which is often later on when the pregnancy becomes visible. Other studies also described that women hide pregnancy and delay prenatal care due to fear that they and their unborn infants would be targets of witchcraft or sorcery by jealous neighbors and kin . Accessing ANC only after a pregnancy is visible reduces the number of ANC visits a woman can make prior to childbirth, and, consequently jeopardizes her ability to receive all recommended services. Delivery of effective tetanus and malaria preventive measures, for example, depends upon at least two visits to the health center, and testing and treatment of syphilis and HIV also depend upon a second appointment for follow-up treatment and counseling. Provision of folic acid and ferrous sulphate lacks effectiveness when administered later than the second trimester.
The most important reason women provided for attending ANC is to gain formal entrance into the healthcare system, including easier access to an institutional delivery and postpartum care. Similar to other studies in low-resource countries, our findings showed that women are not aware of the importance of each of the ANC interventions and do not, therefore, understand why professional care beyond one visit during pregnancy is critical to their health and the health of their unborn baby [14–16].
Also consistent with other research in low-resource settings, women identified lack of transportation, the distance to clinics, costs related to seeking care, inadequate infrastructure, and long waiting time at the health center as barriers to accessing ANC [17–20].
Strengths and limitations of this study
To our knowledge this is the first qualitative analysis related to ANC undertaken in Mozambique with the full involvement of the Ministry of Health and with immediate application to the design and evaluation of an intervention to increase provider uptake of a package of evidence-based services for ANC .
Socio-demographic information of participants was not collected in this research, but each category of key informant participants was well described. Since the sessions were not audio-taped and the analysis were based on the notes taken by the interviewers, recall bias could be introduced.
Triangulation was performed to ensure validity of the information gathered. Key informants with different points of view were interviewed to try and capture as much information as possible from all stakeholders on factors impeding and facilitating uptake of the ANC model. Two analyst and at least two observers were involved in data analysis and review, and any discrepancies in coding or in interpretation of the findings were discussed until consensus was reached .
Conclusions and recommendations
Recommendations to improve ANC in Mozambique
Strengthen delivery of care by (1) defining an integrated package that includes standardized tools for supervision; (2) adapting training models according to health care providers’ professional requirements, and (3) simplifying and updating protocols for ANC interventions.
Defining and strengthening a strategy for the organization of services delivery at the health facility level by addressing human resources efficiency while defining and developing a strategy for task shifting and realistically assessing the number of patients that can be attended by each provider.
Involve the community by disseminating information about the importance of each component of ANC, and pregnant women’s right to attend antenatal care for their health and the health of their unborn baby.
Regarding the supply chain for products required for the ANC interventions, we recommend to:
Introduce the use of an ANC kit system containing the necessary medicines, health commodities, laboratory supplies, equipment; provide adequate storage place for the kits that would give the provider easy and quick access to the necessary supplies.
Develop protocols for the procedures of obtaining and maintaining the stock of supplies required for implementation of the ANC package; introduce a tracking sheet to monitor the stock levels of the supplies.
Predefine a format for ordering products for the ANC package: use the number of ANC consultations as the basis for determining needed supplies.
Improve coordination and follow-up of medicines and health supplies by designating one person at the health center responsible for assessing the availability of the products necessary for ANC.
We want to thank the Mozambican institutions who kindly accept to participate in this research through their health providers. From Tete Province: HC annexed to the rural hospital of Songo. From Maputo City: Health Center (HC) 1ro de Maio, HC da Matola II in Maputo Province, and from Cabo Delgado Province, HC annexed to rural hospital of Montepuez. This project is funded by the Flanders International Cooperation Agency (FICA).
Open Access This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.
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