1. Department of Pediatrics, Sanggyepaik Hospital, Inje University College of Medicine, Seoul, Korea.
2. Department of Diagnostic Laboratory Medicine, Sanggyepaik Hospital, Inje University College of Medicine, Seoul, Korea.
3. Department of Internal Medicine, Sanggyepaik Hospital, Inje University College of Medicine, Seoul, Korea.
4. Department of Otolaryngology, Sanggyepaik Hospital, Inje University College of Medicine, Seoul, Korea.
5. Department of Diagnostic Pathology, Sanggyepaik Hospital, Inje University College of Medicine, Seoul, Korea.