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