1. Department of Nutritional Service Team, Chosun University Hospital, Gwangju 501-717, Korea.
2. Department of Preventive Medicine, College of Medicine, Chosun University, 309 Pilmundae-ro, Dong-gu, Gwangju 501-759, Korea.
3. Department of Food and Nutrition, College of Natural Science, Chosun University, Gwangju 501-759, Korea.