1 Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
2 Department of Pediatrics, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
3 Department of Oncology, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada.
4 The Southern Alberta Rare Blood and Bleeding Disorders Comprehensive Care Program, Foothills Medical Centre, Alberta Health Services, Calgary, Alberta, Canada.