1. From the Department of Cardiovascular Medicine (T.D., Y.K., T. Noguchi, T. Nakashima, S.K., K. Nakao, M.F., T. Nagai, T.K., Y.T., Y.A., T.A., K.K., Y.G., S.Y.), Department of Pediatric Cardiology (E.T.), and Department of Statistics and Data Analysis, Center for Cerebral and Cardiovascular Disease Information (M.N., K.N.), National Cerebral and Cardiovascular Center, Suita, Japan; Department of Advanced Cardiovascular Medicine (T.D., S.Y.) and Department of Cardiovascular Medicine (H.S.), Tohoku...