1. Coagulation Unit, Department of Hematology, Hebrew University, Hadassah Medical School, Jerusalem, Israel
2. Department of Medical Biochemistry, Hebrew University, Hadassah Medical School, Jerusalem, Israel
3. Institute of Thrombosis and Hemostasis, Sheba Medical Center, Tel Hashomer, Israel
4. Department of Cardiothoracic Surgery, Hebrew University, Hadassah Medical School, Jerusalem, Israel