Institution: | (1) Department of Neurosurgery, Kitasato University School of Medicine, Sagamihara, Japan;(2) Division of Neurosurgery, Institute of Neurological Sciences, Faculty of Medicine, Tottori University School of Medicine, Yonago, Japan;(3) Department of Neurosurgery, Ichihara Hospital, Teikyo University School of Medicine, Chiba, Japan;(4) Department of Neurosurgery, Neurological Institute, Tokyo Women's Medical University, Tokyo, Japan |