1. Department of Medicine Michael G. DeGroote School of Medicine; McMaster University; Hamilton Ontario
2. Canadian Blood Services
3. McMaster Transfusion Research Program; Hamilton Ontario Canada
4. Health Research Methodology, Department of Clinical Epidemiology and Biostatistics; McMaster University
5. Department of Medicine Division of Hematology; London Health Sciences Centre; London Ontario Canada
6. Department of Hemato-Oncology; Montreal University; Montreal Quebec Canada
7. Windsor Regional Cancer Program; Windsor Regional Hospital; Windsor Ontario Canada.