[Morpho-genetical studies on simuilarities in the roentgen cephalometry on twins].
D000293:Adolescent; D002508:Cephalometry; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D011247:Pregnancy; D011859:Radiography; D012886:Skull / Q000000981:diagnostic imaging*; D014427:Twins