title: Thresholds for Health-related Quality of Life measures: reality testing.
authors.affiliation: Department of Orthopaedic Surgery, University of Louisville School of Medicine, Louisville, KY 40202, USA.
authors.forename: Steven D
authors.initials: SD
authors.lastname: Glassman
authors.forename: Leah Y
authors.initials: LY
authors.lastname: Carreon
mesh_terms: D006304:Health Status; D006801:Humans; D017063:Outcome Assessment, Health Care; D011788:Quality of Life; D013122:Spinal Diseases / Q000628:therapy*