1. Clinical Scientist Programme
2. Department of Clinical Epidemiology and Biostatistics, McMaster University Health Sciences Centre, Room 2C12, 1200 Main Street West, Hamilton, Ontario, Canada L8N 3Z5.
3. Department of Orthopaedics, University of Minnesota, 420 Deleware St SE, Box 492, Minneapolis Minnesota 55455-0374, USA.
4. Department of Orthopaedics, St Michael’s Hospital, 55 Queen St, Suite 800, Toronto, Ontario Canada DN M5C 1R6.