[1] Univ Western Ontario, London Hlth Sci Ctr, Div Hematol, London, ON, Canada
[2] Cancercare Manitoba SBGH, Hematol, Winnipeg, MB, Canada
[3] Univ Ottawa, Ottawa, ON, Canada
[4] Victoria Hosp, London Hlth Sci Ctr, London, ON N6A 4G5, Canada
[5] Ottawa Hosp, Dept Med, Ottawa, ON, Canada