[1] Princess Margaret Hosp, Dept Psychosocial Oncol & Palliat Care, Palliat Care Serv, Univ Hlth Network, Toronto, ON M5G 2M9, Canada
[2] Princess Margaret Hosp, Univ Hlth Network, Ontario Canc Inst, Toronto, ON M5G 2M9, Canada
[3] Princess Margaret Hosp, Dept Med Oncol, Univ Hlth Network, Toronto, ON M5G 2M9, Canada
[4] Princess Margaret Hosp, Dept Biostat, Univ Hlth Network, Toronto, ON M5G 2M9, Canada
[5] Univ Toronto, Dept Psychiat, Toronto, ON M5S 1A1, Canada
[6] Univ Toronto, Dept Med, Div Med Oncol & Hematol, Toronto, ON M5S 1A1, Canada
[7] Univ Toronto, Dept Family & Community Med, Toronto, ON M5S 1A1, Canada