1. Department of Radiation Oncology, Princess Margaret Cancer Centre, Toronto, ON, Canada;
2. Juravinski Cancer Centre, Hamilton, ON, Canada;
3. Ontario Clinical Oncology Group, McMaster University, Hamilton, ON, Canada;
4. Oncology Research Australia, Toowoomba, Australia;
5. Institut de Cancérologie de l'Ouest René Gauducheau, Nantes Saint Herblain, France;
6. London Regional Cancer Program, London, ON, Canada;
7. CHUM- Hopital Notre-Dame, Montreal, QC, Canada;
8. CancerCare Manitoba, Winnipeg, MB, CANADA;
9. Sunnybrook Health Sciences Centre, Toronto, ON, Canada;
10. Peter MacCallum Cancer Centre, East Melbourne, Australia;
11. Tom Baker Cancer Centre, Calgary, AB, Canada;
12. Cross Cancer Institute, Edmonton, AB, Canada;
13. McMaster University, Hamilton, ON, Canada;