1. Department of Psychosocial Oncology and Palliative Care, Princess Margaret Hospital, University Health Network, Toronto, Canada
2. St. Luke's Home, Mahon, Cork, Ireland
3. Department of Biostatistics, Princess Margaret Hospital, University Health Network, Toronto, Canada
4. Department of Biostatistics Princess Margaret Hospital, University Health Network, Toronto, Canada
5. Division of Medical Oncology and Hematology, Department of Medicine, University of Toronto, Toronto, Canada
6. Department of Psychiatry, University of Toronto, Toronto, Canada, Department of Psychosocial Oncology and Palliative Care, Princess Margaret Hospital, University Health Network, Toronto, Canada,