The cost-effectiveness of a treatment-based classification system for low back pain: design of a randomised controlled trial and economic evaluation.
Apeldoorn
Adri T
AT
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
Ostelo
Raymond W
RW
van Helvoirt
Hans
H
Fritz
Julie M
JM
de Vet
Henrika C W
HC
van Tulder
Maurits W
MW