[1] Natl Cerebral & Cardiovasc Ctr, Dept Cerebrovasc Med, 5-7-1 Fujishirodai, Suita, Osaka 5658565, Japan
[2] NHO Kyushu Med Ctr, Dept Neurol & Cerebrovasc Med, Fukuoka, Japan
[3] Natl Cerebral & Cardiovasc Ctr, Div Stroke Care Unit, Suita, Osaka, Japan
[4] Osaka Univ, Dept Neurol, Grad Sch Med, Suita, Osaka, Japan
[5] Kohnan Hosp, Dept Stroke Neurol, Sendai, Miyagi, Japan
[6] Nippon Med Sch, Grad Sch Med, Dept Neurol Sci, Tokyo, Japan
[7] Japanese Red Cross Kumamoto Hosp, Dept Neurol, Kumamoto, Japan
[8] Kyorin Univ, Dept Neurosurg, Sch Med, Mitaka, Tokyo, Japan
[9] Kyorin Univ, Stroke Ctr, Sch Med, Mitaka, Tokyo, Japan
[10] Nakamura Mem Hosp, Dept Neurosurg, Sapporo, Hokkaido, Japan
[11] Tokai Univ, Dept Neurol, Sch Med, Isehara, Kanagawa, Japan
[12] NHO Nagoya Med Ctr, Dept Neurol, Nagoya, Aichi, Japan
[13] Jichi Med Univ, Div Neurol, Sch Med, Shimotsuke, Tochigi, Japan
[14] Kyoto Second Red Cross Hosp, Dept Neurol, Kyoto, Japan
[15] St Marianna Univ, Dept Neurol, Sch Med, Kawasaki, Kanagawa, Japan
[16] South Miyagi Med Ctr, Dept Neurol, Ogawara, Japan
[17] TOYOTA Mem Hosp, Dept Neurol, Toyota, Japan
[18] NHO Kagoshima Med Ctr, Dept Cerebrovasc Med, Kagoshima, Japan
[19] Brain Attack Ctr Ota Mem Hosp, Dept Neurol, Fukuyama, Hiroshima, Japan
[20] Kitasato Univ, Dept Neurol, Sch Med, Sagamihara, Kanagawa, Japan
[21] Jichi Med Univ, Div Cardiovasc Med, Sch Med, Shimotsuke, Tochigi, Japan
[22] Kawasaki Med Sch, Dept Stroke Med, Kurashiki, Okayama, Japan