1. Department of Oncology, Hospital de la Santa Creu i Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
2. Division of Medical Oncology and Hematology, Department of Medicine, Princess Margaret Cancer Centre, University of Toronto, Toronto, Ontario, Canada
3. Division of Cancer Care and Epidemiology, Queen’s University Cancer Research Institute, Kingston, Ontario, Canada
4. Department of Oncology, Queen’s University, Kingston, Ontario, Canada
5. Department of Public Health Sciences, Queen’s University, Kingston, Ontario, Canada