Neonatal congenital malformations in Calcutta.
D001722:Birth Order; D000013:Congenital Abnormalities / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007194:India; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D012067:Religion; D012621:Seasons