title: Technology assessment revisited: does positron emission tomography have proven clinical efficacy?
authors.affiliation: Department of Neurology, Washington University School of Medicine, St. Louis, MO.
authors.forename: W J
authors.initials: WJ
authors.lastname: Powers
authors.forename: L
authors.initials: L
authors.lastname: Berg
authors.forename: J S
authors.initials: JS
authors.lastname: Perlmutter
authors.forename: M E
authors.initials: ME
authors.lastname: Raichle
mesh_terms: D006801:Humans; D013679:Technology, Radiologic; D014055:Tomography, Emission-Computed / Q000592:standards*