1. Van Creveldkliniek University Medical Center Utrecht, University Utrecht Utrecht The Netherlands
2. Department of Internal Medicine/Hematology Maastricht University Medical Center +, part of the Nijmegen/Eindhoven/Maastricht Haemophilia Treatment Center (HTC) Maastricht The Netherlands
3. Department of Hematology University Medical Center Groningen, University of Groningen Groningen The Netherlands
4. Department of Vascular Medicine Amsterdam University Medical Centers, University of Amsterdam Amsterdam The Netherlands
5. Division of Thrombosis and Hemostasis, Department of Internal Medicine Leiden University Medical Center, part of the Leiden/The Hague HTC Leiden The Netherlands
6. Department of Hematology Erasmus MC, University Medical Center Rotterdam Rotterdam The Netherlands