1. Department of Emergency Medicine, National Cheng-Kung University Hospital, Tainan, Taiwan, Graduate Institute of Occupational Safety and Health, Kaohsiung Medical University, Kaohsiung, Taiwan,
2. Graduate Institute of Occupational Safety and Health, Kaohsiung Medical University, Kaohsiung, Taiwan, Department of Occupational Medicine, Kaohsiung Medicine University Hospital, Kaohsiung, Taiwan
3. Graduate Institute of Occupational Safety and Health, Kaohsiung Medical University, Kaohsiung, Taiwan, Department of Ophthalmology, Chang Gung Memorial Hospital-Kaohsiung Medical Center, Chang Gung University College of Medicine, Kaohsiung, Taiwan
4. Department of Pathology, Kaohsiung Medicine University Hospital, Kaohsiung, Taiwan
5. Department of Emergency Medicine, National Cheng-Kung University Hospital, Tainan, Taiwan