1. Department of Neurology; Chonnam National University Medical School; Gwangju South Korea
2. Department of Neurology; Seoul National University College Medicine, Seoul National University Bundang Hospital; Seongnam South Korea
3. Biomedical Research Institute; Seoul National University Bundang Hospital; Seongnam South Korea
4. Department of Neurology; Tashkent Medical Academy; Tashkent Uzbekistan
5. Department of Neurology, Otolaryngology-Head and Neck Surgery, Neuroscience, and Ophthalmology; Johns Hopkins University School of Medicine; Baltimore MD