1. From the Departments of Immunology (C.J.M.L., H.W., P.J.M.L., H.A.D., F.J.T.S.), Cell Biology and Genetics (R.d.C., R.v.H.), and Vascular Surgery (R.d.), Erasmus Medical Center, Rotterdam, the Netherlands; and Department of Nephrology (C.J.M.L., H.C.d.B., T.J.R., A.J.v.Z.), University Medical Center, Leiden, the Netherlands.