title: Some observations on congenital malformations.
mesh_terms: D000293:Adolescent; D000328:Adult; D000013:Congenital Abnormalities / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D010298:Parity; D006831:Polyhydramnios / Q000150:complications; D011247:Pregnancy