1. Department of Neurology Department of Surgery, Kawatana National Hospital, Nagasaki, Japan
2. Department of Neurology Department of Surgery, Kawatana National Hospital, Nagasaki, Japan, Division of Clinical Research Department of Surgery, Kawatana National Hospital, Nagasaki, Japan,
3. Department of Neurology Department of Surgery, Kawatana National Hospital, Nagasaki, Japan, Division of Clinical Research Department of Surgery, Kawatana National Hospital, Nagasaki, Japan
4. Department of Surgery, Kawatana National Hospital, Nagasaki, Japan
5. Research and Development Laboratory, Asahi Medical Co., Ltd., Oita, Japan