1. Department of Dermatology, Kaohsiung Veterans General Hospital, Taiwan
2. School of Medicine, National Yang-Ming University, Taiwan
3. Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Taiwan
4. Division of Neurosurgery, Department of Surgery, Pingtung Hospital, Taiwan
5. Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Taiwan