1. Biorobotics Laboratory, Department of Mechanical Engineering, SNU-IAMD, Institute of Engineering, Soft Robotics Research Center, Seoul National University, Seoul, South Korea
2. Department of Mechanical Engineering, University of Maryland, College Park, MD, USA
3. Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, South Korea
4. Department of Rehabilitation Medicine, Gangnam Severance Hospital, Rehabilitation Institute of Neuromuscular Disease, Yonsei University College of Medicine, Seoul, South Korea