[1] McMaster Univ, Dept Oncol, Juravinski Canc Ctr, Hamilton, ON, Canada
[2] Princess Margaret Canc Ctr, Toronto, ON, Canada
[3] McMaster Univ, Dept Oncol, Program Evidence Based Care, Hamilton, ON, Canada
[4] Mt Sinai Hosp, Dept Med Imaging, Toronto, ON, Canada
[5] Sunnybrook Odette Canc Ctr, Toronto, ON, Canada
[6] Toronto Gen Hosp, Res Inst, Toronto, ON, Canada
[7] Ottawa Hosp Canc Ctr, Ottawa, ON, Canada
[8] Canc Ctr Southeastern Ontario, Kingston, ON, Canada
[9] Princess Margaret Canc Ctr, Toronto, ON, Canada
[10] Univ Toronto, Dept Radiat Oncol, Toronto, ON, Canada