[1] Univ Hlth Network, Princess Margaret Canc Ctr, Dept Support Care, Toronto, ON M5G 2M9, Canada
[2] Univ Toronto, Global Inst Psychosocial Palliat & End Of Life Ca, Toronto, ON M5G 1Z6, Canada
[3] Univ Hlth Network, Toronto, ON M5G 1Z6, Canada
[4] Harvard Med Sch, 25 Shattuck St, Boston, MA 02115 USA
[5] Univ Toronto, Dept Psychiat, Toronto, ON M5T 1R8, Canada
[6] Univ Hlth Network, Princess Margaret Canc Ctr, Dept Rehabil Serv, Toronto, ON M5G 2M9, Canada
[7] Univ Hlth Network, Princess Margaret Canc Ctr, Dept Med Oncol & Hematol, Toronto, ON M5G 2M9, Canada
[8] Univ Toronto, Dept Med Biophys, Toronto, ON M5G 1L7, Canada
[9] Univ Toronto, Dept Med, Toronto, ON M5S 1A8, Canada