1. Department of Neurosurgery, Ajou University School of Medicine, Suwon;
2. College of Pharmacy, Sunchon National University, Sunchon;
3. Neuroscience Graduate Program, Department of Biomedical Sciences, Graduate School of Ajou University, Suwon;
4. Division of Life Science and Pharmaceuticals, College of Pharmacy, Ewha Woman's University, Seoul;
5. Radio Technology Research Department, Electronics and Telecommunications Research Institute, Daejeon;
6. Department of Radio Sciences and Engineering, College of Engineering, Chungnam National University, Daejeon;
7. School of Electrical and Computer Engineering, Chungbuk National University, Cheongju, Republic of Korea