1. University of Toronto; Radiation Oncology; 2075 Bayview Avenue Toronto ON Canada M4N 3M5
2. McMaster University; Department of Clinical Epidemiology and Biostatistics; 1280 Main Street West Courthouse T-27, 3rd Floor Hamilton ON Canada L8S 4L8
3. The Princess Margaret Hospital; Department of Radiation Oncology; 5th Floor, 610 University Avenue Toronto ON Canada M5G 2M9
4. Odette Cancer Centre; Department of Radiation Oncology; 2075 Bayview Avenue Toronto ON Canada
5. University of Toronto; Department of Biostatistics; University Health Network Toronto ON Canada