1. Departments of Family Medicine, Epidemiology and Biostatistics; Schulich School of Medicine and Dentistry; Centre for Studies in Family Medicine; The University of Western Ontario; London ON Canada
2. School of Physical Therapy and Department of Epidemiology and Biostatistics; The University of Western Ontario; London ON Canada
3. Division of Orthopaedic Surgery; Schulich School of Medicine and Dentistry; The University of Western Ontario; London ON Canada
4. School of Public Health and Health Systems; University of Waterloo; Waterloo ON Canada
5. Department of Epidemiology and Biostatistics; Schulich School of Medicine and Dentistry; The University of Western Ontario; London ON Canada