1. Department of Rehabilitation Medicine, CHA Bundang Medical Center, CHA University, Gyeonggi-do, Republic of Korea,
2. Department of Rehabilitation Medicine, Gangnam Severance Hospital, Rehabilitation Institute of Neuromuscular Disease, Yonsei University College of Medicine, Gangnam-gu, Seoul, Korea,
3. Departments of Physical Medicine and Rehabilitation, National Health Insurance Service Ilsan Hospital, Gyeonggi-do, Republic of Korea and
4. Research and Analysis Team, National Health Insurance Service Ilsan Hospital, Gyeonggi-do, Republic of Korea