Fig. 1

Prenatal screening pathway using different screening strategries. eFTS: Enhanced first trimester screening; cfDNA screening: cell free fetal DNA screening; Amnio: Amniocentesis, CVS: Chorionic villus sampling
Prenatal screening pathway using different screening strategries. eFTS: Enhanced first trimester screening; cfDNA screening: cell free fetal DNA screening; Amnio: Amniocentesis, CVS: Chorionic villus sampling