1 Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No.100, Tzyou 1st Road, Kaohsiung, 807, Taiwan.
2 Department of Neurosurgery, Yucheng People's Hospital, Shandong, People's Republic of China.
3 Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
4 Department of Dermatology, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
5 Department of Nursing, Shu-Zen Junior College of Medicine and Management, Kaohsiung, Taiwan.
6 Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
7 Division of Neurosurgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No.100, Tzyou 1st Road, Kaohsiung, 807, Taiwan. wujoeys@gmail.com.tw.
8 Department of Surgery, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. wujoeys@gmail.com.tw.