1. Department of Medicine, University of Toronto, Toronto, Ontario, Canada.
2. Department of Supportive Care, University Health Network, Toronto, Ontario, Canada.
3. Lawrence S. Bloomberg Faculty of Nursing, University of Toronto, Toronto, Ontario, Canada.
4. Department of Medical Oncology and Haematology, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.
5. Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.
6. Campbell Family Cancer Research Institute, Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada.