1. Department of Cardiology, Fukuoka University School of Medicine, Fukuoka, Japan.
2. Department of Cardiology, Fukuoka University Nishijin Hospital, Fukuoka, Japan.
3. Cardiovascular Research Institute, Fukuoka University, Fukuoka, Japan.
4. Clinical Research and Ethics Center, Fukuoka University School of Medicine, Fukuoka, Japan.
5. Medical Education Center, Fukuoka University School of Medicine, Fukuoka, Japan.
6. Faculty of Sports and Health Science, Fukuoka University, Fukuoka, Japan.
7. Comprehensive Medical Center, Fukuoka University School of Medicine, Fukuoka, Japan.