1. The First Department of Internal Medicine, Nippon Medical School
2. The Second Department of Internal Medicine, Nippon Medical School
3. Division of Cardiology, Osaka Prefectural Hospital
4. The Third Department of Internal Medicine, Toho University School of Medicine, Ohashi Hospital
5. Department of Pharmacoepidemiology, Kyoto University School of Public Health
6. Department of Statistics and Information Science, Toyama Medical Pharmaceutical University