title: Impacts of Lower Back Pain: Refinement of the Pain Assessment for Lower Back-Impacts Questionnaire (Pal-I) Using a Mixed Methods Approach.
authors.affiliation: Health Research Associates, Inc., Seattle, WA, USA.
authors.forename: D M
authors.initials: DM
authors.lastname: Bushnell
authors.affiliation: Health Research Associates, Inc., Seattle, WA, USA.
authors.forename: K P
authors.initials: KP
authors.lastname: McCarrier
authors.affiliation: Forest Research Institute, Jersey City, NJ, USA.
authors.forename: A
authors.initials: A
authors.lastname: Ramasamy
authors.affiliation: Grünenthal GmbH, Aachen, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Liedgens
authors.affiliation: GlaxoSmithKline, Collegeville, PA, USA.
authors.forename: S I
authors.initials: SI
authors.lastname: Blum
authors.affiliation: ScaleReport, Stotfold, UK.
authors.forename: S
authors.initials: S
authors.lastname: Cano
authors.affiliation: Health Research Associates, Inc., Seattle, WA, USA.
authors.forename: M L
authors.initials: ML
authors.lastname: Martin
authors.affiliation: University of Washington, Seattle, WA, USA.
authors.forename: D L
authors.initials: DL
authors.lastname: Patrick