1. I. Kjeken, OT, PhD, is Senior Researcher, National Resource Centre for Rehabilitation in Rheumatology, Diakonhjemmet Hospital, Oslo, Norway.
2. C. Ziegler, Bachelor in German and Danish, is Project Manager, Danish Rheumatism Association, Gentofte, Denmark.
3. J. Skrolsvik, Bachelor in Marketing Management, is General Secretary, Norwegian Rheumatism Association, Oslo, Norway.
4. J. Bagge, Master of Social Science, is Research Executive, Swedish Rheumatism Association, Stockholm, Sweden.
5. G. Smedslund, PhD, is Senior Researcher, National Resource Centre for Rehabilitation in Rheumatology, Diakonhjemmet Hospital.
6. A. Tøvik, Bachelor in Social Work, is Social Worker, National Resource Centre for Rehabilitation in Rheumatology, Diakonhjemmet Hospital.
7. H.S. Dagfinrud, PT, PhD, is Senior Researcher, National Resource Centre for Rehabilitation in Rheumatology, Diakonhjemmet Hospital.
8. I.F. Petersson, MD, PhD, is Associate Professor, Departments of Orthopaedics and Rheumatology, Lund University and Lund University Hospital, Lund, Sweden.
9. KB Hagen, PhD, is Senior Researcher, National Resource Centre for Rehabilitation in Rheumatology, Diakonhjemmet Hospital.