1. Department of Rehabilitation Medicine, Pohang Stroke and Spine Hospital, Pohang, Korea.
2. Department of Medical Science and Engineering, School of Convergence Science and Technology, Pohang University of Science and Technology, Pohang, Korea.
3. Department of Research and Analysis, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
4. Department of Biostatistics and Computing, Yonsei University Graduate School, Seoul, Korea.
5. Department of Neurology, Pohang Stroke and Spine Hospital, Pohang, Korea.
6. Department of Neurology, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
7. Department of Physical Medicine and Rehabilitation, National Health Insurance Service Ilsan Hospital, Goyang, Korea.