[1] Dalhousie University,Department of Radiation Oncology
[2] University of Toronto,Division of Medical Oncology and Hematology, Department of Medicine
[3] Princess Margaret Hospital,Department of Psychosocial Oncology and Palliative Care
[4] Toronto,Campbell Family Cancer Research Institute, Ontario Cancer Institute
[5] University Health Network,Department of Biostatistics
[6] Princess Margaret Hospital,undefined
[7] Toronto,undefined
[8] University Health Network,undefined
[9] Princess Margaret Hospital,undefined
[10] Toronto,undefined
[11] University Health Network,undefined