1. Cardiovascular Center, Kansai Rosai Hospital, Amagasaki, Japan
2. Department of Metabolic Medicine, Graduate School of Medicine/Faculty of Medicine, Osaka University, Suita, Japan
3. Department of Diabetes Care Medicine, Graduate School of Medicine/Faculty of Medicine, Osaka University, Suita, Japan
4. Department of Cardiology, Kokura Memorial Hospital, Kitakyushu, Fukuoka, Japan
5. Department of Cardiology, Kishiwada Tokushukai Hospital, Kishiwada, Osaka, Japan
6. Department of Cardiology, Morinomiya Hospital, Osaka, Japan
7. Department of Cardiology, Saiseikai Yokohama-City Eastern Hospital, Yokohama, Kanagawa, Japan
8. Department of Cardiology, Yonsei University Severance Hospital, Yongin-si, South Korea