1. Department of Medical Oncology and Hematology, Princess Margaret Cancer Centre, Toronto, Canada
2. Hȏspital Maisonneuve-Rosemont, Montreal, Canada
3. Jewish General Hospital, Montreal, Canada
4. Queen Elizabeth II Health Sciences Centre, Dalhousie University, Halifax, Canada
5. Winship Cancer Institute Emory University School of Medicine, Atlanta, GA, USA
6. Division of Hematology/Oncology, University of Chicago Medical Center, Chicago, IL, USA
7. Department of Biostatistics, Princess Margaret Cancer Centre, Toronto, Canada
8. Princess Margaret Cancer Centre Ontario Cancer Institute, Toronto, Canada