1. Center for Clinical Epidemiology Lady Davis Institute, Jewish General Hospital Montreal Quebec Canada
2. Department of Epidemiology McGill University Montreal Quebec Canada
3. Department of Oncology McGill University Montreal Quebec Canada
4. Segal Cancer Center, Jewish General Hospital Montreal Quebec Canada
5. Department of Hematology Maisonneuve‐Rosemont Hospital Montreal Quebec Canada
6. Department of Hematology and Transfusion Medicine University of Montreal Health Centre Montreal Quebec Canada
7. University of Montreal Montreal Quebec Canada
8. University of Quebec Center of Hematology and Oncology, University of Quebec Health Centre Quebec City Quebec Canada