Affiliation: | 1.Department of Neurosurgery, Institute of Clinical Medicine,University of Tsukuba,Tsukuba,Japan;2.Molecular Tumor Marker Research Team, The Oncology Research Center, Advanced Molecular Epidemiology Research Institute,Yamagata University Faculty of Medicine,Yamagata,Japan;3.Department of Forensic Medicine,Yamagata University Faculty of Medicine,Yamagata,Japan |