1. Department of Medicine—Thrombosis and Hemostasis, Leiden University Medical Center , Albinusdreef 2, 2333 ZA Leiden , The Netherlands
2. Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg University , Langenbeckstrasse 1, 55131 Mainz , Germany
3. Department of Internal Medicine and Cardiology, Medical University of Warsaw , Żwirki i Wigury 61, 02-091 Warsaw , Poland
4. Department of Cardiology, Democritus University of Thrace , Campus 691 00, 68100 Alexandroupolis , Greece