title: Orientation of the postero-anterior skull cephalogram by registration on mathematical centers.
authors.forename: M A
authors.initials: MA
authors.lastname: Yousif
mesh_terms: D002508:Cephalometry / Q000295:instrumentation / Q000379:methods*; D005147:Facial Bones / Q000033:anatomy & histology*; D006801:Humans; D012886:Skull / Q000033:anatomy & histology*; D013223:Statistics as Topic