1. Department of General Medicine Shirakawa Satellite for Teaching And Research (STAR) Fukushima Medical University Fukushima Japan
2. Department of Medical Education Juntendo University School of Medicine Tokyo Japan
3. Department of Information and Computer Technology Faculty of Engineering Tokyo University of Science Tokyo Japan
4. Department of Internal, Emergency, and General Medicine Saitama Citizens Medical Center Saitama Japan
5. Department of Emergency Medicine Fukushima Medical University Fukushima Japan
6. Division of Clinical Epidemiology The Jikei University School of Medicine Tokyo Japan
7. Department of Pathology Faculty of Medicine University of Tsukuba Tsukuba City Japan
8. Muribushi Okinawa Center for Teaching Hospitals Urasoe City Japan