1. Department of Medicine, University of Toronto, ONT, Respiratory Division, University Health Network and St Michael’s Hospital, Toronto, Canada
2. Department of Medicine, Université de Montréal, Hôpital du Sacré-Cœur de Montréal, Montréal, Canada
3. Formerly from the Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, Canada
4. Division of Respirology, Critical Care and Sleep Medicine, Department of Medicine, University of Saskatchewan, Royal University Hospital, Saskatoon, Canada
5. Formerly from the Department of Medicine, Faculté de Médecine, Université de Montréal, Montréal, Canada
6. Formerly from the Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, Canada
7. Formerly from the Department of Medicine, Hôpital du Sacré-Cœur de Montréal and Université de Montréal, Montreal, Canada