1. From the Department of Pathology (J.v.L., M.F.M.v.O., A.H.B., D.F.v.W., J.v.K., E.d.K., R.A.d.W.), Heart Lung Center Utrecht (N.d.J.), and Department of Immunology (F.H.J.G.-M.), University Medical Center Utrecht, Utrecht; and Department of Internal Medicine, Erasmus Medical Center, Rotterdam (C.C.B.), the Netherlands.