1. From the Department of Thrombosis and Hemostasis, Leiden University Medical Center, Leiden (L.M.P., T.H., F.A.K., M.V.H.), the Department of Internal Medicine, Haga Teaching Hospital (L.M.P., A.T.A.M.), and the Department of Internal Medicine, Haaglanden Medical Center (H.M.A.H.), the Department of Vascular Medicine, Amsterdam University Medical Center, University of Amsterdam, Amsterdam Cardiovascular Sciences, Amsterdam (I.M.B., S.M.), the Department of Internal Medicine, Flevo Hospital, Almere (I.M.B....