Takahisa Mori1, Kazuhiro Yoshioka2. 1. Department of Stroke Treatment, Shonan Kamakura General Hospital Stroke Center, Okamoto 1370-1, Kamakura City, Kanagawa, 247-8533, Japan. morit-koc@umin.net. 2. Department of Stroke Treatment, Shonan Kamakura General Hospital Stroke Center, Okamoto 1370-1, Kamakura City, Kanagawa, 247-8533, Japan.