1 Critical Care Medicine, University of Toronto, Rm 411N 2MCL Toronto Western Hospital, 399 Bathurst St, Toronto, ON M5T 2S8, Canada. Electronic address: laura.hawryluck@uhn.ca.
2 Division of Palliative Care, Department of Medicine, University of Ottawa, Canada.
3 Critical Care Medicine, University of Toronto, Rm 411N 2MCL Toronto Western Hospital, 399 Bathurst St, Toronto, ON M5T 2S8, Canada.