1. From the Knight Cardiovascular Institute, Oregon Health & Science University, Portland, OR (C.Y.S., Y.N.L., T.A., A.X., T.F., B.P.D., M.T., Y.Q., J.R.L.); Puget Sound Blood Center Research Institute, Seattle, WA (J.A.L., A.M.); and Department of Molecular and Experimental Medicine, Roon Research Center for Arteriosclerosis and Thrombosis, The Scripps Research Institute, La Jolla, CA (Z.R.).