[1] Nagoya Univ, Grad Sch Med, Dept Cardiol, Showa Ku, Nagoya, Aichi 4668550, Japan
[2] Nagoya Univ, Sch Med, Dept Med Sci Proteases, Showa Ku, Nagoya, Aichi 4668550, Japan
[3] Ogaki Municipal Hosp, Dept Cardiol, Gifu, Japan
[4] Komaki Municipal Hosp, Dept Cardiol, Aichi, Japan
[5] Kariya Gen Hosp, Dept Cardiol, Kariya, Aichi, Japan
[6] Tosei Gen Hosp, Dept Cardiol, Aichi, Japan