1. Graduate School of Nutrition Education, Daejin University, Gyeonggi 487-711, Korea.
2. Department of Food and Nutrition and Research Institute of Human Ecology, Seoul National Uiversity, Seoul 151-742, Korea.
3. Department of Food and Nutrition, Seoul Women's University, Seoul 139-774, Korea.
4. Department of Food Science and Nutrition, Daejin University, 11-1 Sundan-dong, Pocheon-si, Gyeonggi 487-711, Korea.