1 Division of Hematology, Department of Medicine, University of British Columbia, Vancouver, BC V5Z1M9, Canada. Electronic address: lchen2@bccancer.bc.ca.
2 Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC V5Z1M9, Canada; Centre for Lymphoid Cancer, BC Cancer, Vancouver, BC, Canada.
3 Division of Rheumatology, Department of Medicine, University of British Columbia, Vancouver, BC, Canada.