1. Division of Hematology, Department of Medicine University of Toronto Toronto Ontario Canada
2. Trillium Health Partners Etobicoke Ontario Canada
3. Transfusion Medicine Hamilton Regional Laboratory Medicine Program Hamilton Ontario Canada
4. Department of Medicine, Michael G. DeGroote School of Medicine McMaster University Hamilton Ontario Canada
5. Department of Pathology & Molecular Medicine, Michael G. DeGroote School of Medicine McMaster University Hamilton Ontario Canada
6. Service of Benign Hematology, Hamilton Health Sciences Hamilton General Hospital Hamilton Ontario Canada