1. Department of Public Health and Primary Health Care; Norwegian Knowledge Centre for Health Services; University of Bergen PO Box 7004, St Olav's plass Oslo Norway 0130
2. Norwegian Directorate for Health and Social Affairs; Department for Knowledge Support; Postbox 8045 Dep NO-0031 Oslo Norway
3. Norwegian Physiotherapist Association/ Norsk Fysioterapeutforbund; P. O. B. 2704 St. Hanshaugen Oslo Norway 0131
4. Diakonhjemmet Hospital; National Resource Centre for Rehabilitation in Rheumatology; PO Box 23 Vindern 0319 Oslo Norway
5. Molde Hospital; Child and Adolescence Psychiatric Dept; NO-6407 Molde Norway