1. Institute of Clinical Chemistry and Laboratory Medicine; University Hospital Hamburg-Eppendorf; Hamburg Germany
2. Department of Anatomy and Molecular Embryology; Medical Faculty; Ruhr University Bochum; Bochum Germany
3. Department of Hematology and Central Hematology Laboratory; Bern University Hospital and University of Bern; Bern Switzerland
4. Institute of Transfusion Medicine; University Hospital Hamburg-Eppendorf; Hamburg Germany
5. Department of Molecular Medicine and Surgery; Karolinska Institutet and University Hospital; Stockholm Sweden
6. Center for Thrombosis and Hemostasis; University Medical Center; Mainz Germany