1. Department of Cardiology, Kokura Memorial Hospital
2. Department of Metabolic Medicine, Osaka University Graduate School of Medicine
3. Cardiovascular Center, Kansai Rosai Hospital
4. Department of Cardiology, Tokyo Saiseikai Central Hospital
5. Department of Cardiology, Yokohama-city Tobu Hospital
6. Department of Cardiology, Morinomiya Hospital
7. Department of Cardiology, Shin-Koga Hospital
8. Department of Vascular Surgery, Matsuyama Red Cross Hospital