Jae-Myung Kim1, You-Ri Kang1, Kyung Wook Kang1, Seung-Han Lee2. 1. Department of Neurology, Chonnam National University Hospital and Chonnam National University Medical School, 42 Jebong-ro, Dong-gu, Gwangju, 61469, South Korea. 2. Department of Neurology, Chonnam National University Hospital and Chonnam National University Medical School, 42 Jebong-ro, Dong-gu, Gwangju, 61469, South Korea. nrshlee@chonnam.ac.kr.