1. Department of Oncology, University of Calgary, Calgary, AB T2N 4N1, Canada
2. Cancer Research & Analytics, Cancer Care Alberta, Alberta Health Services, Edmonton, AB T5J 3H1, Canada
3. Division of Radiation Oncology, University of Calgary, Tom Baker Cancer Centre, Calgary, AB T2N 4N2, Canada
4. Cancer Strategic Clinical Network, Alberta Health Services, Calgary, AB T2S 3C3, Canada
5. School of Public Health, University of Alberta, Edmonton, AB T6G 1C9, Canada