1. Division of Community Medicine, Department of Medical Education, Iwate Medial University
2. Department of Cardiology, Iwate Prefectural Central Hospital
3. Health and Welfare Department, Iwate Prefectural Government
4. Health Care Center, Iwate University
5. Department of Cardiology, Iwate Prefectural Isawa Hospital
6. Department of Cardiology, Iwate Prefectural Iwai Hospital
7. Division of Cardiology, Department of Internal Medicine, Iwate Medial University
8. Iwate Medical Association