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