Cleft lip and palate in Finland: incidence, secular, seasonal, and geographical variations.
D000015:Abnormalities, Multiple / Q000453:epidemiology; D002508:Cephalometry; D002971:Cleft Lip / Q000145:classification / Q000453:epidemiology* / Q000235:genetics; D002972:Cleft Palate / Q000145:classification / Q000453:epidemiology* / Q000235:genetics; D005260:Female; D005387:Finland; D005843:Geography; D006801:Humans; D008297:Male; D012621:Seasons; D012737:Sex Factors