1. Centre for Outcomes Research and Evaluation (CORE) Research Institute of McGill University Health Centre Montréal QC Canada
2. Canadian Blood Services Ottawa Ontario Canada
3. Division of Hematology McGill University Health Centre Montréal QC Canada
4. Division of Nephrology and the Multi‐Organ Transplant Program Royal Victoria Hospital, McGill University Health Centre Montréal QC Canada
5. Department of Epidemiology, Biostatistics and Occupational Health McGill University Montréal QC Canada