1 Department of Cardiovascular Biology and Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan; Department of Digital Health and Telemedicine R&D, Juntendo University, Tokyo, Japan. Electronic address: kgnb_27_hot@yahoo.co.jp.
2 Department of Cardiology, Sakakibara Heart Institute, Tokyo, Japan.
3 Cardiovascular Physiology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan.
4 University of Occupational and Environmental Health, Kitakyushu, Japan.
5 Department of Cardiology, Sakakibara Heart Institute of Okayama, Okayama, Japan.