title: The cost-effectiveness of a treatment-based classification system for low back pain: design of a randomised controlled trial and economic evaluation.
authors.affiliation: Department of Epidemiology and Biostatistics and the EMGO Institute for Health and Care Research, VU University Medical Centre, Amsterdam, the Netherlands. a.apeldoorn@vumc.nl
authors.forename: Adri T
authors.initials: AT
authors.lastname: Apeldoorn
authors.forename: Raymond W
authors.initials: RW
authors.lastname: Ostelo
authors.forename: Hans
authors.initials: H
authors.lastname: van Helvoirt
authors.forename: Julie M
authors.initials: JM
authors.lastname: Fritz
authors.forename: Henrika C W
authors.initials: HC
authors.lastname: de Vet
authors.forename: Maurits W
authors.initials: MW
authors.lastname: van Tulder