1. Chungcheongnam-do Health & Environment Research Institute, Daejeon, Korea
2. Department of Food and Nutrition, College of Human Ecology, Chung-Ang University, Anseong, Korea
3. Department of Preventive Medicine and Public Health, College of Medicine, Chungnam National University, Daejeon, Korea
4. Department of Herbal Resources, Professional Graduate School of Oriental Medicine, Wonkwang University, Iksan, Korea
5. Department of Life Science, Daejeon University, Daejeon, Korea
6. Division of Enteric and Hepatitis Viruses, Korea Center for Disease Control and Prevention, Seoul, Korea