1. Division of Hemostasis and Thrombosis; Department of Hematology; University Medical Center Groningen; Groningen
2. Department of Clinical Epidemiology; University Medical Center Groningen; Groningen
3. Department of Vascular Medicine; Academic Medical Center Amsterdam; Amsterdam
4. Department of Hematology; and Department of Clinical Epidemiology; Maastricht University Medical Center; Maastricht the Netherlands
5. Medical Technology Assessment; Maastricht University Medical Center; Maastricht the Netherlands