1. Department of Hematology, Erasmus University Medical Center, Rotterdam, The Netherlands;
2. Department of Pediatric Hematology, Erasmus University Medical Center–Sophia Children’s Hospital, Rotterdam, The Netherlands; and
3. Division of Thrombosis and Hemostasis, Department of Internal Medicine and
4. Einthoven Laboratory for Vascular and Regenerative Medicine, Leiden University Medical Center, Leiden, The Netherlands