1. Department of Medicine, University of Toronto, University Health Network, Toronto, Ontario, Canada
2. Section of General Internal Medicine, Lakeridge Health Oshawa, Oshawa, Ontario, Canada
3. Division of Respirology, Department of Medicine, University Health Network, Toronto, Ontario, Canada
4. Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, Ontario, Canada
5. Division of Geriatrics, St. Michael’s Hospital, University of Toronto, Toronto, Ontario, Canada
6. Li Ka Shing Knowledge Institute of St. Michael’s Hospital, Toronto, Ontario, Canada5Division of Geriatrics, St. Michael’s Hospital, University of Toronto, Toronto, Ontario, Canada