1 Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Graduate School of Medicine, 6-11-1 Omorinishi, Ota-ku, Tokyo, 143-8541, Japan.
2 Division of Cardiovascular Medicine, Department of Internal Medicine, Toho University Graduate School of Medicine, 6-11-1 Omorinishi, Ota-ku, Tokyo, 143-8541, Japan. amanohide@med.toho-u.ac.jp.
3 Division of Cardiovascular Medicine, Department of Internal Medicine, Faculty of Medicine, Toho University, Tokyo, Japan.