1. Division of Environmental Health and Occupational Medicine, National Health Research Institutes, and Graduate Institute of Occupational Safety and Health, Kaohsiung Medical University, Kaohsiung, Taiwan
2. Institute of Medicine, Chung Shan Medical University, and Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan
3. Department of Nuclear Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
4. Department of Occupational and Environmental Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan
5. ERGO Research Laboratory, Hamburg, Germany