[1] Univ Calgary Tom Baker Canc Ctr, Calgary, AB, Canada
[2] Univ Manitoba, Winnipeg, MB, Canada
[3] Cross Canc Inst, Edmonton, AB, Canada
[4] Natl Canc Inst Canada Clin Trials Grp, Ottawa Hosp, Ottawa, ON, Canada
[5] McMaster Univ, Juravinski Canc Ctr, Hamilton, ON, Canada
[6] Dr H Bliss Murphy Canc Ctr, St John, NF, Canada
[7] Nova Scotia Canc Ctr, Dalhousie Univ, Nova Scotia, NS, Canada
[8] Univ Ottawa, Ottawa, ON, Canada
[9] Canc Care Manitoba, Winnipeg, MB, Canada