1. Department of Food Science and Nutrition, Dong-A University, Busan 604-714, Korea.
2. Department of Food and Nutrition and Institute of Health Science, Korea University, 145, Anam-ro, Seongbuk-gu, Seoul 136-703, Korea.
3. Department of Nutrition Services, Youngdong Severance Hospital, Yonsei University College of Medicine, Seoul 135-720, Korea.