1 Division of Cardiology, Internal Medicine III, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan.
2 Division of Cardiology, Internal Medicine III, Hamamatsu University School of Medicine, 1-20-1 Handayama, Higashi-ku, Hamamatsu, 431-3192, Japan. asakamo@hama-med.ac.jp.
3 Department of Diagnostic Pathology, Hamamatsu University School of Medicine, Hamamatsu, Japan.
4 First Department of Surgery, Hamamatsu University School of Medicine, Hamamatsu, Japan.