1. Department of Biochemistry, Chungnam National University School of Medicine, Daejeon 35015, Republic of Korea
2. Department of Medical Science, Chungnam National University School of Medicine, Daejeon 35015, Republic of Korea
3. Department of Internal Medicine, Chungnam National University Hospital, Daejeon 35015, Republic of Korea
4. Department of Neurology, Chungnam National University Hospital, Daejeon 35015, Republic of Korea