Incidence of clefts and parental age.
D000293:Adolescent; D000328:Adult; D000368:Aged; D001719:Birth Certificates; D002648:Child; D002675:Child, Preschool; D002971:Cleft Lip / Q000453:epidemiology* / Q000209:etiology; D002972:Cleft Palate / Q000453:epidemiology* / Q000209:etiology; D000013:Congenital Abnormalities / Q000453:epidemiology; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008423:Maternal Age; D008875:Middle Aged; D012189:Retrospective Studies; D014481:United States; D014798:Vital Statistics