[1] Univ Ottawa, Fac Med, 451 Smyth Rd 2044, Ottawa, ON K1H 8M5, Canada
[2] Univ British Columbia, BC Canc Ctr, 600 W 10th Ave, Vancouver, BC V5Z 4E6, Canada
[3] Northern Ontario Sch Med, Med Oncol, Div Clin Sci, 955 Oliver Rd, Thunder Bay, ON P7B 5E1, Canada
[4] King Fahad Med City, Comprehens Canc Ctr, Med Oncol Dept, Makkah Al Mukarramah Branch Rd, Riyadh 11564, Saudi Arabia
[5] Ottawa Hosp Res Inst, 1053 Carling Ave, Ottawa, ON K1Y 4E9, Canada
[6] Ottawa Hosp Res Inst, Clin Epidemiol Program, 1053 Carling Ave, Ottawa, ON K1Y 4E9, Canada
[7] Univ Ottawa, 1053 Carling Ave, Ottawa, ON K1Y 4E9, Canada
[8] Univ Ottawa, Dept Med, Div Med Oncol, 501 Smyth Rd, Ottawa, ON K1H 8L6, Canada