Affiliation: | 1.Department of Neurosurgery, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan ;2.Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo, 160-8582, Japan ;3.Department of Neurosurgery, Fujita Health University School of Medicine, 1-98 Dengakugakubo, Kutusukake-cho, Toyoake, Aichi, 470-1192, Japan ; |