[Morpho-genetic studies on the similarity in x-ray cerphalometry of twins. I. Shape and size].
D000293:Adolescent; D000328:Adult; D002508:Cephalometry; D002648:Child; D002675:Child, Preschool; D005260:Female; D005826:Genetics, Medical; D006801:Humans; D011247:Pregnancy; D012886:Skull / Q000033:anatomy & histology*; D014427:Twins