1. Division of Cardiovascular Medicine, Department of Internal Medicine, Kobe University Graduate School of Medicine
2. Clinical & Translational Research Center, Kobe University Hospital
3. Division of Cardiology, Department of Medicine, Showa University School of Medicine
4. Division of Cardiology, Osaka Saiseikai Nakatsu Hospital
5. Cardiovascular Center, Kansai Rosai Hospital
6. Kakogawa Central City Hospital