1. Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
2. Division of Neurosurgery, Department of Surgery, Chi Mei Foundation Medical Center, Tainan 710, Taiwan
3. Department of Occupational Safety and Health/Institute of Industrial Safety and Disaster Prevention, College of Sustainable Environment, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan
4. Department of Neurology and Occupational Medicine, Chi Mei Foundation Medical Center, Tainan 710, Taiwan
5. Department of Medical Research, Chi Mei Foundation Medical Center, Tainan 710, Taiwan
6. Department of Hospital and Health Care Administration, Chia Nan University of Pharmacy and Science, Tainan 717, Taiwan
7. Department of Anesthesiology, Chi Mei Foundation Medical Center, Tainan 710, Taiwan
8. Department of Health Care Administration and Medical Informatics, Kaohsiung Medical University, Kaohsiung 807, Taiwan
9. Department of Biochemistry and Molecular Biology, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan
10. Division of General Surgery, Department of Surgery, College of Medicine, National Cheng Kung University, Tainan 701, Taiwan