1. School of Physiotherapy and Exercise Science, Curtin University, GPO Box U1987, Perth, 6845, Australia.
2. Bone and Joint Research Office, Royal Cornwall Hospital, Cornwall, England.
3. Department for Musculoskeletal Rehabilitation, Prevention and Health Service Research, Charité Universitätsmedizin, Berlin, Germany.
4. Department of Essential Medicines and Health Products, World Health Organization, Geneva, Switzerland.
5. Sydney Medical School, The University of Sydney, Sydney, Australia.
6. Canadian Memorial Chiropractic College, University of Toronto, Toronto, Canada.
7. Department of Clinical Sciences, Lund University, Malmö, Sweden.
8. Institute of Bone and Joint Research, Royal North Shore Hospital, Sydney, Australia.