1 Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands.
2 Department of Radiology, Leiden University Medical Center, Leiden, the Netherlands.
3 Department of Intensive Care Medicine, Leiden University Medical Center, Leiden, the Netherlands.
4 Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands; Department of Clinical Epidemiology, Leiden University Medical Center, Leiden, the Netherlands.
5 Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden, the Netherlands. Electronic address: f.a.klok@LUMC.nl.