1. Department of Biochemistry and Molecular Biology, Ajou University School of Medicine, Suwon 16499, Korea
2. Department of Otolaryngology, Ajou University School of Medicine, Suwon 16499, Korea
3. Department of Biomedical Sciences, The Graduate School, Ajou University, Suwon 16499, Korea
4. Omics Center, Ajou University School of Medicine, Suwon 16499, Korea
5. Department of Gastroenterology, Ajou University of Medicine, Suwon 16499, Korea
6. Department of Pathology, Chung-Ang University College of Medicine, Seoul 156-756, Korea