1. Department of Food and Nutrition, College of Human Ecology, Seoul National University, Seoul, Korea
2. Research Institute of Human Ecology, Seoul National University, Seoul, Korea
3. Department of Child Development and Family Studies, College of Human Ecology, Seoul National University, Seoul, Korea
4. Division of Endocrinology and Metabolism, Department of Internal Medicine, Hanyang University Guri Hospital, Hanyang University College of Medicine, Guri, Korea