[1] Kawaguchi Municipal Med Cntr, Kawaguchi, Saitama, Japan
[2] Surugadai Nihon Univ Hosp, Tokyo, Japan
[3] Natl Cntr Neurol & Psychiat, Tokyo, Japan
[4] Kokura Mem Hosp, Kitakyushu, Fukuoka, Japan
[5] Sakakibara Heart Inst, Tokyo, Japan
[6] Natl Cerebral & Cardiovasc Cntr Hosp, Suita, Osaka, Japan
[7] Kyoto Univ, Grad Sch Med, Kyoto, Japan