1. Graduate School of Nutrition Education, Daejin University, Kyeonggi 487-711, Korea.
2. Department of Food and Nutrition, Seoul National University, Seoul 151-742, Korea.
3. Department of Food and Nutrition, Myongji University, Yongin, Kyeonggi 449-728, Korea.
4. Department of Food Science & Nutrition, Daejin University, 11-1 Sundan-dong, Pocheonsi, Kyeonggi 487-711, Korea.