1 Department of Neurology, Soonchunhyang University Gumi Hospital, Soonchunhyang University School of Medicine, Gumi, Korea.
2 Department of Neurology, Soonchunhyang University Gumi Hospital, Soonchunhyang University School of Medicine, Gumi, Korea. denovo78@schmc.ac.kr, denovo78@naver.com.