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