1. Department of Cardiology; Kishiwada Tokushukai Hospital; Kishiwada Osaka Prefecture Japan
2. Department of Metabolic Medicine; Osaka University Graduate School of Medicine; Suita Osaka Prefecture Japan
3. Department of Cardiology; Tokyo Rosai Hospital; Tokyo Japan
4. Department of Cardiology; Morinomiya Hospital; Osaka Osaka Prefecture Japan
5. Department of Cardiology; Saisekikai Tobu Hospital; Yokohama Kanagawa Prefecture Japan
6. Department of Cardiology; Tokyo General Hospital; Tokyo Japan
7. Department of Cardiology; Japanese Red Cross Kyoto Daini Hospital; Kyoto Kyoto Prefecture Japan
8. Department of Cardiology; Miyazaki Medical Association Hospital; Miyazaki-City Miyazaki Japan