Affiliation: | 1. Department of Otolaryngology, Ajou University School of Medicine, 5 Wonchon-Dong, Yeongtong-Gu, Suwon 442-749, Korea;2. Department of Nutrition and Food Science, College of Agriculture and Natural Resources, University of Maryland, College Park, MD 20742, USA;3. Department of Biomedical and Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville, TN 37996, USA |