[1] Hoffmann La Roche Ltd, Mississauga, ON, Canada
[2] William Osler Hlth Syst, Brampton, ON, Canada
[3] McGill Univ, Hlth Ctr, Montreal, PQ, Canada
[4] Cornerstone Res Grp Inc, Burlington, ON, Canada
[5] F Hoffmann La Roche Ltd, Basel, Switzerland
[6] Cross Canc Inst, Edmonton, AB, Canada