1. Department of Otolaryngology, Chonnam National University Medical School, Gwangju 61469, Korea
2. Department of Veterinary Anatomy, College of Veterinary Medicine and Animal Medical Institute, Chonnam National University, Gwangju 61186, Korea
3. Department of Biomedical Engineering, Dankook University College of Medicine, Cheonan 31116, Korea
4. Department of Biology, College of Natural Science, Chosun University, Gwangju 61452, Korea
5. Department of Life Science, BK21-Plus Research Team for Bioactive Control Technology, Chosun University, Gwangju 61452, Korea