1. Division of Cardiology Japanese Red‐Dross Fukuoka Hospital Fukuoka Japan
2. Department of Cardiovascular Medicine Kyushu University Hospital Fukuoka Japan
3. Division of Cardiology Aso Iizuka Hospital Iizuka Japan
4. Division of Cardiology St. Mary’s Hospital Kurume Japan
5. Division of Cardiology Fukuoka Dental College Hospital Fukuoka Japan