[1] Natl Cerebral & Cardiovasc Cntr, Suita, Osaka, Japan
[2] Kyoto Prefectural Univ Med, Kyoto, Japan
[3] Wakayama Med Univ, Wakayama, Japan
[4] Hyogo Prefectral Amagasaki Hosp, Amagasaki, Hyogo, Japan
[5] Osaka City Gen Hosp, Osaka, Japan
[6] Shiga Univ Med Sci, Otsu, Shiga 52021, Japan
[7] Kinki Univ, Nara Hosp, Fac Med, Nara, Japan