1. Department of Cardiac Sciences (O.K.), University of Calgary, Canada.
2. Division of Cardiology (O.K.), University of Toronto, Canada.
3. Division of Respirology (L.H.), University of Calgary, Canada.
4. Toronto Lung Transplant Program, Toronto General Hospital, University Health Network, ON, Canada (L.H., M.B.).
5. Division of Respirology, Toronto General Hospital, Ontario, Canada (M.B.).
6. Division of Cardiology, Sinai Health System and the University Health Network (S.M.), University of Toronto, Canada.