[Etiological factors in cleft lip and palate. Epidemiologic study].
D002971:Cleft Lip / Q000453:epidemiology / Q000209:etiology* / Q000401:mortality; D002972:Cleft Palate / Q000453:epidemiology / Q000209:etiology* / Q000401:mortality; D005260:Female; D006801:Humans; D007223:Infant; D007564:Japan; D008297:Male