1 Department of Medicine (Laratta, Ayas); Sleep Disorders Program (Laratta, Ayas), University of British Columbia, Vancouver, BC; Department of Medicine (Povitz); Department of Epidemiology and Biostatistics (Povitz), Schulich School of Medicine and Dentistry, Western University, London, Ont.; Department of Medicine (Pendharkar); Department of Community Health Sciences (Pendharkar), Cumming School of Medicine, University of Calgary, Calgary, Alta.
2 Department of Medicine (Laratta, Ayas); Sleep Disorders Program (Laratta, Ayas), University of British Columbia, Vancouver, BC; Department of Medicine (Povitz); Department of Epidemiology and Biostatistics (Povitz), Schulich School of Medicine and Dentistry, Western University, London, Ont.; Department of Medicine (Pendharkar); Department of Community Health Sciences (Pendharkar), Cumming School of Medicine, University of Calgary, Calgary, Alta. sachin.pendharkar@ucalgary.ca.