PHYSIOTHERAPY WORKS: RCT ON THE (COST-)EFFECTIVENESS OF A PHYSICAL THERAPIST-LED, WORK-ORIENTED INTERVENTION IN PEOPLE WITH AXIAL SPONDYLOARTHRITIS AND RHEUMATOID ARTHRITIS
NF Bakker; J. Knoop; Nathan Hutting; Yvonne Heerkens; Josephine Engels; Bart Staal; M van der Leeden; A Boonen; TPMV Vlieland; SFE van Weely