1 Department of Medicine, Obesity Research and Management, Li Ka Shing Center for Health Research Innovation, University of Alberta, Edmonton, AB, T6G 2E1, Canada. aogunley@ualberta.ca.
2 Department of Family Medicine, University of Alberta, 6-10 University Terrace, Edmonton, AB, T6G 2T4, Canada. aogunley@ualberta.ca.
3 Department of Medicine, Obesity Research and Management, Li Ka Shing Center for Health Research Innovation, University of Alberta, Edmonton, AB, T6G 2E1, Canada.
4 Department of Family Medicine, University of Alberta, 6-10 University Terrace, Edmonton, AB, T6G 2T4, Canada.