1. Camp 9 Orthopedic Clinic, Hwaseong, Korea.
2. Assistive Technology Research Team for Independent Living, Research Institute, National Rehabilitation Center, Seoul, Korea.
3. BioComputing Lab, School of Computer Science and Engineering, Korea University of Technology and Education, Cheonan, Korea.
4. Department of Radiology, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea.
5. Department of Orthopedic Surgery, Hallym University Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea.