Affiliation: | (1) Department of Pathology, Gunma University School of Medicine, 3-39-22 Showa-machi, 371-8511 Maebashi, Gunma, Japan;(2) Department of Neurosurgery, Gunma University School of Medicine, Gunma, Japan;(3) Department of General Medicine, Gunma University School of Medicine, Gunma, Japan;(4) Department of Radiology and Radiation Oncology, Gunma University School of Medicine, Gunma, Japan |