1. Department of Cardiovascular Dynamics National Cerebral and Cardiovascular Center 6‐1 Kishibe‐Shimmachi Suita Osaka Japan
2. Department of Cardiovascular Medicine, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
3. Department of Pediatrics, Graduate School of Medical Sciences Kyushu University Fukuoka Japan
4. Department of Fukuoka Health and Welfare Sciences International University of Health and Welfare Okawa Japan
5. Circulatory System Research Foundation Fukuoka Japan