1. Division of Medical Oncology and Hematology, Department of Medicine, University of Toronto, Canada.
2. Department of Psychosocial Oncology and Palliative Care, Princess Margaret Hospital, University Health Network, Canada.
3. Department of Medical Oncology, Princess Margaret Hospital, University Health Network, Canada.
4. Ontario Cancer Institute, Princess Margaret Hospital, University Health Network, Canada.
5. Department of Family and Community Medicine, University of Toronto, Canada.
6. Department of Biostatistics, Princess Margaret Hospital, University Health Network, Canada.
7. Department of Psychiatry, University of Toronto, Canada.