[1] Canadian Ctr Appl Res Canc Control ARCC, Vancouver, BC, Canada
[2] Oxford Outcomes Ltd, Vancouver, BC, Canada
[3] Univ British Columbia, Sch Populat & Publ Hlth, Vancouver, BC V5Z 1M9, Canada
[4] British Columbia Canc Agcy, Ctr Lymphoid Canc, Vancouver, BC V5Z 4E6, Canada