1. Department of Obstetrics and Gynecology, Kaohsiung Medical University Hospital, Kaohsiung 807377, Taiwan
2. Center for Cancer Research, Kaohsiung Medical University, Kaohsiung 807377, Taiwan
3. Division of Neurosurgery, Department of Surgery, Kaohsiung Armed Forces General Hospital, Kaohsiung, Taiwan
4. Department of Neurosurgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
5. Department of Neurosurgery, Xiamen Chang Gung Hospital, Xiamen, Fujian, China
6. Department of Marine Biotechnology and Resources, National Sun Yat-sen University, Kaohsiung, Taiwan