1. Division of Radiation Oncology, Department of Radiology, The Ottawa Hospital, Ottawa, Ontario, Canada
2. Department of Radiation Oncology, Odette Cancer Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
3. Division of Urology, Department of Surgery, Western University, London, Ontario, Canada
4. Division of Urology, Department of Surgery, University of Toronto, Toronto, Ontario, Canada
5. Division of Radiation Oncology, Department of Oncology, London Health Sciences Centre, London, Ontario, Canada
6. Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada