[Statistical and cytogenetic study on the cleft lip, alveolus and-or plate].
D000367:Age Factors; D002971:Cleft Lip / Q000453:epidemiology / Q000235:genetics*; D002972:Cleft Palate / Q000453:epidemiology / Q000235:genetics*; D003241:Consanguinity; D004200:Diseases in Twins; D005260:Female; D006801:Humans; D007621:Karyotyping; D008297:Male; D011247:Pregnancy; D044469:Racial Groups; D012737:Sex Factors