1. School of Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
2. Department of Family Medicine, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
3. Department of Physical Medicine and Rehabilitation, School of Medicine, College of Medicine, Taipei Medical University, New Taipei City, Taiwan
4. Department of Physical Medicine and Rehabilitation, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
5. Department of Rehabilitation and Movement Science, University of Vermont, College of Nursing and Health Sciences, Burlington, VT, USA
6. Swiss Paraplegic Research, Nottwil, Switzerland
7. Taipei Neuroscience Institute, Taipei Medical University, New Taipei City, Taiwan