1. Department of Cardiovascular and Respiratory Medicine; Shiga University of Medical Science; Otsu Japan
2. Division of Physiology; Shiga University of Medical Science; Otsu Japan
3. Department of Cardiovascular Medicine; Kyoto University Graduate School of Medicine; Kyoto Japan
4. Department of Cardiology and Clinical Examination; Oita University Faculty of Medicine; Yufu Japan
5. Faculty of Health Sciences; Yamaguchi Graduate School of Medicine; Ube Japan