[1] Japanese Red Cross Otsu Hosp, Cardiol, Otsu, Shiga, Japan
[2] Japanese Red Cross Wakayama Med Ctr, Dept Cardiol, Wakayama, Japan
[3] Kyoto Univ, Grad Sch Med, Dept Cardiovasc Med, Kyoto, Japan
[4] Hyogo Coll Med, Dept Clin Epidemiolo, Nishinomiya, Hyogo, Japan
[5] Kurashiki Cent Hosp, Dept Cardiovasc Med, Kurashiki, Okayama, Japan
[6] Kinki Univer, Dept Cardiol, Higashiosaka, Osaka, Japan
[7] Kokura Mem Hosp, Dept Cardiol, Kita Kyusyu City, Japan
[8] Kobe City Med Ctr Gen Hospita, Dept Cardiovasc Med, Kobe, Hyogo, Japan
[9] Osaka Red Cross Hosp, Dept Cardiovasc Ctr, Osaka, Japan
[10] Shizuoka Prefectural Gen Hosp, Dept Cardiol, Shizuoka, Japan
[11] Shizuoka City Shizuoka Hosp, Dept Cardiol, Shizuoka, Japan
[12] Shimada Municipal Hospita, Div Cardiol, Shimada, Japan
[13] Japanese Red Cross Wakayama Med Ctr, Dept Cardiol, Wakayama, Japan
[14] Kyoto Univ, Grad Sch Med, Dept Cardiovasc Med, Kyoto, Japan