[1] Princess Margaret Hosp, Div Med Oncol & Hematol, Toronto, ON M5G 2M9, Canada
[2] Princess Margaret Hosp, Autologous Blood & Marrow Transplant Programme, Toronto, ON M5G 2M9, Canada
[3] Princess Margaret Hosp, Clin Study Coordinat & Biostat, Toronto, ON M5G 2M9, Canada
[4] Princess Margaret Hosp, Dept Radiat Oncol, Toronto, ON M5G 2M9, Canada