1. Department of Family Medicine Shiga University of Medical Science Otsu Japan
2. Department of Cardiology Saku Central Hospital Advanced Care Center Saku Japan
3. Department of Emergency Medicine Saku Central Hospital Advanced Care Center Saku Japan
4. Department of Internal Medicine Hyogo Prefectural Tamba Medical Center Tamba Japan
5. Division of Community Medicine and Career Development Kobe University Graduate School of Medicine Kobe Japan