1. Department of Medicine University of Ottawa at The Ottawa Hospital and Ottawa Hospital Research Institute Ottawa ON Canada
2. Blood Transfusion Service Department of Pathology Massachusetts General Hospital and Harvard Medical School Boston MA USA
3. Clinic for HematologyClinical Center Serbia Belgrade Serbia
4. School of Medicine University of Belgrade Belgrade Serbia
5. Departments of Anesthesiology Critical Care, and Surgery Duke University School of Medicine Durham NC USA
6. Department of Medicine McMaster University Hamilton ON Canada
7. Division of Hematology Brigham and Women's Hospital and Harvard Medical School Boston MA USA
8. Division of Hemostasis and Thrombosis Beth Israel Deaconess Medical Center and Harvard Medical School Boston MA USA