1. Department of Neurology; Ajou University College of Medicine; Ajou University Hospital; Suwon Republic of Korea
2. Department of Biomedical Laboratory Science; Kyungdong University; Goseong Republic of Korea
3. Department of Otolaryngology-Head and Neck Surgery; Seoul National University College of Medicine; Seoul National University Bundang Hospital; Seongnam Republic of Korea
4. Department of Neurology; Seoul National University College of Medicine; Seoul National University Bundang Hospital; Seongnam Republic of Korea