1. Children's Hospital of Eastern Ontario Research Institute; Ottawa Canada
2. University of Ottawa; Department of Pediatrics and School of Rehabilitation Sciences; Ottawa Canada
3. Bruyère Research Institute; Methods Centre; Ottawa ON Canada
4. University of Ottawa; School of Epidemiology and Public Health; Ottawa Canada
5. Ottawa Hospital Research Institute; Clinical Epidemiology Program; Ottawa Canada
6. University of Ottawa; Cochrane Musculoskeletal; Ottawa ON Canada
7. University of Bern; Institute of Primary Health Care (BIHAM); Gesellschaftsstrasse 49 Bern Switzerland 3012
8. University of Bern; Institute of Social and Preventive Medicine (ISPM); Mittelstrasse 43 Bern Bern Switzerland 3012
9. University of Bern; CTU Bern; Bern Switzerland
10. Cleveland Clinic: Orthopedic and Rheumatologic Institute; Department of Rheumatic and Immunologic Diseases; 9500 Euclid Ave- A50 Cleveland OH USA 44195
11. University of Ottawa; Department of Medicine, Faculty of Medicine; Ottawa ON Canada K1H 8M5
12. Bruyère Research Institute; WHO Collaborating Centre for Knowledge Translation and Health Technology Assessment in Health Equity; Ottawa Canada K1R 7G5