[1] Osaka Police Hosp, Dept Cardiol, Osaka, Japan
[2] Kobe Univ, Dept Internal Med, Div Cardiovasc Med, Grad Sch Med, Kobe, Hyogo, Japan
[3] Iwate Med Univ, Dept Internal Med, Div Cardiol, Iwate, Japan
[4] Osaka Police Hosp, Dept Cardiol, 10-31 Kitayamacho,Tennoji Ku, Osaka 5430035, Japan