1. Department of Medicine; Division of Hematology-Oncology; University of North Carolina; Chapel Hill NC USA
2. Thrombosis Research Unit; Center for Vascular Diseases; University Hospital; Technische Universität Dresden; Dresden Germany
3. Division of Pulmonary and Critical Care Medicine; University of Washington School of Medicine; Seattle WA USA
4. Department of Thrombosis and Hemostasis; Leiden University Medical Center; Leiden the Netherlands
5. Department of Hematology; Oslo University Hospital and University of Oslo; Oslo Norway