1 Division of Palliative Care, Department of Medicine (Bush, Lawlor), University of Ottawa; Bruyère Research Institute (Bush, Lawlor); The Ottawa Hospital Research Institute (Lawlor), Ottawa, Ont. sbush@bruyere.org.
2 Division of Palliative Care, Department of Medicine (Bush, Lawlor), University of Ottawa; Bruyère Research Institute (Bush, Lawlor); The Ottawa Hospital Research Institute (Lawlor), Ottawa, Ont.