1. Institute for Health Policy, Management and Evaluation, University of Toronto, Toronto, ON M5S 1A1, Canada
2. Cancer Quality Laboratory (CQuaL), Princess Margaret Cancer Centre, Toronto, ON M5G 1X6, Canada
3. Institute for Clinical Evaluative Sciences (ICES), Toronto, ON M4N 3M5, Canada
4. Division of Medical Oncology and Hematology, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
5. Department of Medicine, University of Toronto, Toronto, ON M5S 1A1, Canada
6. Department of Medicine, University Health Network, Toronto, ON M5G 2C4, Canada
7. Department of Medicine, McGill University, Montreal, QC H3A 0G4, Canada