1. University of Calgary; Calgary Alberta Canada
2. University of Toronto; Toronto Ontario Canada
3. University of Western Ontario and St. Joseph's Health Care; London Ontario Canada
4. McGill University; Montreal Quebec Canada
5. CHUS-Sherbrooke University; Sherbrooke Quebec Canada
6. Southlake Regional Health Centre; Newmarket Ontario Canada
7. Institut de Rhumatologie de Montreal; Montreal Quebec Canada
8. Hospital for Special Surgery; New York New York
9. University of Manitoba; Winnipeg Manitoba Canada