1. Biomedical Research Institute, Jeonbuk National University Medical School and Hospital, Jeonju, South Korea
2. Department of Neurology and Research Institute of Clinical Medicine of Jeonbuk National University, Jeonju, South Korea
3. Department of Medical Informatics of Jeonbuk National University, Jeonju, South Korea
4. Department of Otorhinolaryngology and Research Institute of Clinical Medicine of Jeonbuk National University, Jeonju, South Korea