title: The reply.
authors.affiliation: Department of Internal Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pa.
authors.forename: Mina
authors.initials: M
authors.lastname: Owlia
authors.affiliation: Department of Internal Medicine, University of Pittsburgh Medical Center, Pittsburgh, Pa.
authors.forename: Gregory M
authors.initials: GM
authors.lastname: Bump
mesh_terms: D005260:Female; D006257:Head / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D010343:Patient Admission; D014057:Tomography, X-Ray Computed / Q000592:standards* / Q000706:statistics & numerical data*; D019564:Unnecessary Procedures / Q000706:statistics & numerical data*