1. Department of Mechanical Engineering, Chung-Ang University, Seoul, Republic of Korea
2. Department of Mechanical Engineering, University of Colorado Boulder, Boulder, CO, USA
3. Department of Neurology, College of Medicine, Seoul National University Hospital, Seoul, Republic of Korea
4. Department of Neurology, College of Medicine, Chung-Ang University Hospital, Seoul, Republic of Korea
5. Department of Intelligent Energy and Industry, Chung-Ang University, Seoul, Republic of Korea