1. Department of Pediatrics, Institute of Health Sciences, School of Medicine, Gyeongsang National University, Jinju, Korea.
2. Department of Otolaryngology, Institute of Health Sciences, School of Medicine, Gyeongsang National University, Jinju, Korea.
3. Department of Pathology, Institute of Health Sciences, School of Medicine, Gyeongsang National University, Jinju, Korea.
4. Department of Microbiology, Institute of Health Sciences, School of Medicine, Gyeongsang National University, Jinju, Korea.