1. Graduate Institute of Food Safety, College of Agriculture and Natural Resources National Chung Hsing University Taichung Taiwan
2. Department of Public Health, College of Medicine National Cheng Kung University Tainan Taiwan
3. Department of Internal Medicine National Taiwan University Hospital Taipei Taiwan
4. Division of Epidemiology, Department of Epidemiology, Biostatistics, Population Studies and Health Promotion, Faculty of Public Health Universitas Airlangga Surabaya Indonesia
5. Department of Public Health, College of Public Health China Medical University Taichung Taiwan
6. Department of Healthcare Administration, College of Medical and Health Science Asia University Taichung Taiwan