[A genetic study on the morphology of the maxillary basal arch by twin method].
D000539:Alveolar Process / Q000033:anatomy & histology; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla / Q000033:anatomy & histology*; D011247:Pregnancy; D014427:Twins; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic