1. Einthoven Laboratory for Experimental Vascular Medicine,
2. Department of Internal Medicine, Division of Thrombosis and Hemostasis,
3. Central Laboratory Animal Facility, and
4. Department of Pediatrics, Division of Neonatology, Leiden University Medical Center, Leiden, The Netherlands;
5. Department of Immunopathology, Sanquin-Academic Medical Center Landsteiner Laboratory, Amsterdam, The Netherlands;
6. Department of Internal Medicine and Biochemistry, Maastricht University, Maastricht, The Netherlands; and
7. Department of Clinical Chemistry and Hematology, University Medical Center Utrecht, Utrecht, The Netherlands