1. From the Cardiology Division, Massachusetts General Hospital, Harvard Medical School, Boston (K.K., T.Y., H.J., F.A., R.V., S.H., J.T., S.-J.K., I.M., I.-K.J.);Department of Cardiology, The Second Affiliated Hospital of Harbin Medical University, The Key Laboratory of Myocardial Ischemia, Chinese Ministry of Education, Harbin, China (H.J., S.H., J.T., B.Y.); Department of Cardiology, College of Medicine, Kyung Hee University, Seoul, Korea (S.-J.K.); Department of Biostatistics, Massachusetts General...