1. Nutrition Safety Policy Division, Food Nutrition and Dietary Safety Bureau, Ministry of Food and Drug Safety, Heungdeok-gu, Cheongju-si, Chungbuk 28159, Korea.
2. Department of Food Science and Nutrition, Daedeok Valley Campus, Hannam University, 461-6 Jeonmin-dong, Yuseong-gu, Daejeon 34054, Korea.
3. Department of Family Medicine, Eulji University School of Medicine, Daejeon 35233, Korea.
4. Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul 03181, Korea.