1. Division of Cardiology, Department of Internal Medicine, Iwate Medical University
2. Iwate Prefectural Kuji Hospital
3. Iwate Prefectural Miyako Hospital
4. Iwate Prefectural Kamaishi Hospital
5. Iwate Prefectural Ofunato Hospital
6. Iwate Prefectural Ninohe Hospital
7. Division of Cardioangiology, Nephrology and Endocrinology, Department of Internal Medicine, Iwate Medical University