1. Department of Family Practice, University of British Columbia, Vancouver, BC, Canada
2. Sport and Exercise Medicine Research Centre, La Trobe University, Melbourne, Victoria, Australia
3. Canadian Institutes of Health Research, Ottawa, ON, Canada
4. Department of Medicine and Department of Epidemiology and Biostatistics, McGill University, Montreal, QC, Canada
5. Centre for Journalology, Clinical Epidemiology Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
6. Canadian Institutes of Health Research-Institute of Musculoskeletal Health and Arthritis, Vancouver, BC, Canada