title: [Cephalometric study using P-A radiographs of normal occlusion in Beijing].
authors.forename: X H
authors.initials: XH
authors.lastname: Yu
mesh_terms: D000293:Adolescent; D000328:Adult; D044466:Asian People; D002508:Cephalometry / Q000379:methods; D002648:Child; D002681:China; D003766:Dental Occlusion; D005260:Female; D006801:Humans; D007091:Image Processing, Computer-Assisted; D008297:Male; D011859:Radiography; D012016:Reference Values; D012737:Sex Factors; D012886:Skull / Q000033:anatomy & histology / Q000000981:diagnostic imaging*