1. University of Calgary and Arthritis Research Centre of Canada, Calgary; Alberta Canada
2. Dalhousie University, Halifax; Nova Scotia Canada
3. University of British Columbia, Vancouver, and Arthritis Research Centre of Canada, Richmond; British Columbia Canada
4. University of Calgary, Calgary; Alberta Canada
5. University of Calgary and Alberta Health Services, Calgary; Alberta Canada
6. Johns Hopkins University School of Public Health; Baltimore Maryland
7. University of Calgary and Libin Cardiovascular Institute of Alberta, Calgary; Alberta Canada
8. University of British Columbia, Vancouver; British Columbia Canada
9. University of Alberta, Edmonton; Alberta Canada