1. Prevention and Cancer Control, Cancer Care Ontario, Toronto, ON, Canada
2. Department of Medicine, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
3. Institute for Clinical Evaluative Sciences, Toronto, ON, Canada
4. Institute of Health Policy, Management and Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, ON, Canada
5. Department of Medicine, University of Toronto, Toronto, ON, Canada
6. Program in Evidence-Based Care, Cancer Care Ontario, Hamilton, ON, Canada
7. Department of Surgery, St. Michael’s Hospital, Toronto, ON, Canada
8. Li Ka Shing Knowledge Institute, St. Michael’s Hospital, Toronto, ON, Canada
9. Department of Medicine, Division of Gastroenterology, University of Ottawa, The Ottawa Hospital, Ottawa, ON, Canada
10. William Osler Health Centre, Etobicoke, ON, Canada
11. Vaughan Endoscopy Clinic, Vaughan, ON, Canada
12. Northeast Cancer Centre Health Sciences North/Horizon Santé-Nord, Sudbury Outpatient Centre, Sudbury, ON, Canada
13. American Society of Clinical Oncology, Alexandria, VA, USA