Twins and growth of dento-facial structures.
D000293:Adolescent; D000367:Age Factors; D002508:Cephalometry; D002648:Child; D002657:Child Development; D002675:Child, Preschool; D005147:Facial Bones / Q000000981:diagnostic imaging / Q000254:growth & development*; D005260:Female; D005823:Genetics; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008445:Maxillofacial Development; D010290:Parents; D011247:Pregnancy; D011859:Radiography; D012737:Sex Factors; D014427:Twins; D014429:Twins, Dizygotic; D014430:Twins, Monozygotic