1. From the Department of Internal Medicine and Infectious Diseases (J.P.H.v.W. and I.M.H.), University Medical Center, Utrecht, the Netherlands; the Department of Nephrology (E.J.P.d.K. and T.J.R.), University Medical Center, Leiden, the Netherlands; the Department of Vascular Medicine (G.M.D.-T.), Academic Medical Center, Amsterdam, the Netherlands; and the Department of Internal Medicine (M.C.C.), Center for Diabetes and Vascular Medicine, St Franciscus Gasthuis, Rotterdam, the Netherlands.