1. Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, The Netherlands;
2. Department of Internal Medicine, Diakonessenhuis, Utrecht, The Netherlands;
3. Department of Radiology, Haga Teaching Hospital, The Hague, The Netherlands;
4. Department of Radiology, Deventer Hospital, Deventer, The Netherlands;
5. Department of Internal Medicine, Rijnland Hospital, Leiderdorp, The Netherlands; and
6. Department of Radiology, Leiden University Medical Center, Leiden, The Netherlands