1 Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital, 2-2-1 Mitatojimaminami-cho, Chuo-ku, Kobe, 650-0047, Japan. ta2guchi@kuhp.kyoto-u.ac.jp.
2 Department of Cardiovascular Medicine, Kobe City Medical Center General Hospital, 2-2-1 Mitatojimaminami-cho, Chuo-ku, Kobe, 650-0047, Japan.