1. The Toronto Platelet Immunobiology Group,
2. Keenan Research Centre for Biomedical Sciences, St. Michael's Hospital, and
3. Institute of Medical Science, University of Toronto, Toronto, ON, Canada;
4. Canadian Blood Services, Toronto, ON, Canada;
5. Department of Medicine, and
6. Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada;
7. Cancer Center, Qilu Hospital, Shandong University, Jinan, China; and