1. Sleep Disorders Center, Misericordia Health Center, University of Manitoba , Winnipeg , Canada
2. YRT Limited , Winnipeg, Manitoba , Canada
3. Sleep Centre, Foothills Medical Centre, Department of Medicine, University of Calgary , Calgary, AB , Canada
4. Department of Medicine, Faculty of Medicine, University of British Columbia , Vancouver , Canada
5. Division of Respirology, Critical Care and Sleep Medicine, University of Saskatchewan , Saskatoon , Canada
6. Respiratory Division, McGill University Health Centre, Respiratory Epidemiology Clinical Research Unit and Meakins-Christie Laboratories, McGill University , Montreal, QC , Canada
7. Unité de Recherche en Pneumologie, Centre de Recherche, Institut Universitaire de Cardiologie et de Pneumologie de Québec, Université Laval , Québec, QC , Canada
8. Department of Medicine, Cumming School of Medicine, University of Calgary , Calgary, AB , Canada
9. Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary , Calgary, AB , Canada
10. Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary , Calgary, AB , Canada