1. From the Department of Experimental Vascular Medicine (S.W.F., J.C.M.M., J.C.D.), Department of Vascular Medicine (S.W.F., G.M.D.-T., J.J.P.K., G.K.H.), and Department of Medical Biochemistry (S.W.F., N.Z.), Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands; and Department of Plasma Proteins, Sanquin Research, Amsterdam, The Netherlands (J.C.M.M.).