1. Department of Community Health Sciences, Cumming School of Medicine, University of Calgary, AB, Canada
2. Department of Medicine, Cumming School of Medicine, University of Calgary, AB, Canada
3. Department of Medicine, University of Alberta, Edmonton, Canada
4. Department of Community Health Sciences, University of Manitoba, Winnipeg, Canada
5. Department of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Canada
6. Faculty of Medicine & Dentistry, University of Alberta, Edmonton, Canada