1. Centre for Innovation, Canadian Blood Services, Ottawa, ON, Canada;
2. Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada;
3. Keenan Research Centre for Biomedical Science, Li Ka Shing Knowledge Institute, St. Michael's Hospital, Unity Health Toronto, Toronto, ON, Canada;
4. Toronto Platelet Immunobiology Group, Toronto, ON, Canada; and
5. Department of Medicine and