1. Department of Radiology; University of Ottawa; Ottawa ON Canada
2. Clinical Epidemiology Program; Ottawa Hospital Research Institute; Ottawa ON Canada
3. Division of Cancer Care and Epidemiology; Queen's University Cancer Research Institute; Kingston ON Canada
4. Department of Oncology; Queen's University; Kingston ON Canada
5. Department of Urology; Queen's University; Kingston ON Canada
6. Department of Public Health Sciences; Queen's University; Kingston ON Canada