1. Department of Nursing Science Hirosaki University Graduate School of Health Science Hirosaki Japan
2. Department of Hypertension and Stroke Internal Medicine Hirosaki University Graduate School of Medicine Hirosaki Japan
3. Department of Cardiology Hirosaki University Graduate School of Medicine Hirosaki Japan
4. Daiichi Sankyo Co, Ltd, Biologics Technology Research Laboratories Group 1, Pharmaceutical Technology Division Gunma Japan
5. Saiseikai Kumamoto Hospital, Division of Cardiology Kumamoto Japan