1 Department of Biology, College of Natural Science, Chosun University, Gwangju 61452, Republic of Korea.
2 BK21 FOUR Education Research Group for Age-Associated Disorder Control Technology, Department of Integrative Biological Science, Chosun University, Gwangju 61452, Republic of Korea.
3 Department of Veterinary Anatomy, College of Veterinary Medicine and BK21 FOUR Program, Chonnam Natioanal University, Gwanjgu 61186, Republic of Korea.
4 Department of Biomedical Engineering, College of Medicine, Dankook University, Cheonan 31116, Republic of Korea.
5 Department of Otolaryngology, Chonnam National University Medical School, Gwangju 61469, Republic of Korea.