[1] Yokohama City Univ, Med Ctr, Yokohama, Kanagawa, Japan
[2] Teikyo Univ, Sch Med, Tokyo, Japan
[3] Univ Occupat & Environm Hlth, Kitakyushu, Fukuoka, Japan
[4] Tokyo CCU Network Sci Comm, Tokyo, Japan
[5] Toyohashi Heart Ctr, Toyohashi, Aichi, Japan
[6] Kansai Rosai Hosp, Amagasaki, Hyogo, Japan
[7] Kawasaki Med Sch, Kurashiki, Okayama, Japan
[8] Mitsui Mem Hosp, Tokyo, Japan
[9] Iwate Med Univ, Mem Heart Ctr, Dept Internal Med, Div Cardiol, Morioka, Iwate, Japan
[10] Fujisawa City Hosp, Fujisawa, Kanagawa, Japan
[11] Tokai Univ, Sch Med, Hiratsuka, Kanagawa, Japan
[12] Sakurabashi Watanabe Hosp, Osaka, Japan
[13] NTT Med Ctr Tokyo, Tokyo, Japan
[14] Kyorin Univ, Sch Med, Tokyo, Japan
[15] Sakakibara Heart Inst, Fuchu, Tokyo, Japan
[16] Ageo Cent Gen Hosp, Ageo, Japan