1. Department of Pathology and Laboratory Medicine (T.A.G., Z.W., H.W., H.M., Y.D., Y.X., L.T., R.P., J.A.S., Y.Y., L.Q., J.L.), University of North Carolina, Chapel Hill.
2. Department of Cardiovascular Surgery, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, China (Z.W.).
3. Now with: Department of Cardiology, 2nd Affiliated Hospital, School of Medicine, Zhejiang University. Hangzhou, China (H.M.).
4. Department of Medicine and Cardiovascular Research Institute, University of California, San Francisco (H.R., V.V.).