1. Department of Pharmacology, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
2. Department of Healthcare Administration, I-Shou University, Kaohsiung, Taiwan
3. Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
4. Division of Environmental Health and Occupational Medicine, National Health Research Institute, Miaoli, Taiwan