1 Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada.
2 Division of Rheumatology, Department of Medicine, McGill University, Montreal, QC, Canada.
3 MitogenDx, Calgary, AB, Canada.
4 Division of Rheumatology, Department of Medicine, McGill University, Montreal, QC, Canada; Centre for Outcomes Research and Evaluation, McGill University Health Centre, Montreal, QC, Canada.
5 Division of Rheumatology, University of British Columbia, Vancouver, BC, Canada.
6 Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; McCaig Institute for Bone and Joint Health, University of Calgary, Calgary, AB, Canada. Electronic address: may.choi@ucalgary.ca.