1. From the Department of Pediatric Cardiology, National Cerebral and Cardiovascular Center, Osaka, Japan (I.S., H.S., T.A., M.K., K. Kurosaki); the Department of Preventive Cardiology, National Cerebral and Cardiovascular Center, Osaka, Japan (K.N.); the Department of Cardiology, National Center for Child Health and Development, Tokyo, Japan (H.K.); the Department of Pediatric Cardiology, Tokyo Women’s Medical University, Tokyo, Japan (T.N.); the Department of Pediatrics, Keio University School of...