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Table 6 Single factor ANOVA test of prognosis based on ring shape:

From: Vascular ring: prenatal diagnosis and prognostic management based on sequential cross-sectional scanning by ultrasound

Distance grading

ANOVA

Grade I

Grade II

P = 0.000

Grade III

P = 0.000

Grade II

Grade III

P = 0.000

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BMC Pregnancy and Childbirth

ISSN: 1471-2393

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