1. Department of Pediatrics, College of Medicine, Kaohsiung, Taiwan
2. Chang-Gung Memorial Hospital and Chang-Gung University, Kaohsiung, Taiwan
3. Department of Public Health, College of Health Sciences, Kaohsiung Medical University, Kaohsiung, Taiwan
4. Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung City, Taiwan
5. National Institute of Environmental Health Sciences, National Health Research Institute, Miaoli, Taiwan