title: Back pain study relies on intermediate outcomes.
authors.affiliation: University of Washington, Seattle, USA.
authors.forename: J G
authors.initials: JG
authors.lastname: Jarvik
mesh_terms: D003952:Diagnostic Imaging; D004185:Disability Evaluation; D006305:Health Status Indicators; D006801:Humans; D017116:Low Back Pain / Q000175:diagnosis / Q000453:epidemiology*; D017063:Outcome Assessment, Health Care; D010147:Pain Measurement