1. Division of Hematology and Oncology; Department of Medicine; Thrombosis and Hemostasis Program; UNC McAllister Heart Institute; University of North Carolina at Chapel Hill; Chapel Hill NC USA
2. K.G. Jensen Thrombosis Research and Expertise Center; University of Tromsø; Tromsø Norway
3. Department of Pathology and Laboratory Medicine; University of North Carolina at Chapel Hill; Chapel Hill NC USA
4. Department of Medicine I; Medical University of Vienna; Vienna Austria