East-West differentials in congenital malformations in India.
D000293:Adolescent; D000328:Adult; D000013:Congenital Abnormalities / Q000453:epidemiology*; D005260:Female; D005313:Fetal Death / Q000453:epidemiology; D006801:Humans; D007194:India; D007231:Infant, Newborn; D007234:Infant, Premature; D008297:Male; D008423:Maternal Age; D008875:Middle Aged; D011247:Pregnancy; D012959:Socioeconomic Factors