1. Division of Hematology/Oncology, Center for Hemostasis and Thrombosis Research, Tufts Medical Center, Boston, MA (L.V.D., N.N., C.G., E.F., R.S., L.C., A.K.).
2. Department of Medicine, Tufts University School of Medicine, Boston, MA. (L.C., A.K.)
3. Department of Biochemistry, Tufts University School of Medicine, Boston, MA. (L.C., A.K.)