1. Department of Neurology, National Cheng Kung University Hospital, College of Medicine National Cheng Kung University Tainan Taiwan
2. Department of Pathology, National Cheng Kung University Hospital, College of Medicine National Cheng Kung University Tainan Taiwan
3. Division of Neurosurgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine National Cheng Kung University Tainan Taiwan