1. Department of Rehabilitative and Assistive Technology, Korea National Rehabilitation Research Institute
2. Department of Physical Therapy, Sahmyook University, College of Health Science
3. Department of Physical Therapy, Myongji Choonhey Rehabilitation Hospital
4. Department of Physical and Rehabilitation Medicine, Center for Prevention & Rehabilitation, Heart Vascular and Stroke, Samsung Medical Center, Sungkyunkwan University School of Medicine