1. Department of Physical Medicine and Rehabilitation, College of Medicine, Yeungnam University, Taegu, Gyeongsan 38436, Republic of Korea
2. Cheonho S Orthopedic Clinic, Seoul 06014, Republic of Korea
3. Department of Physical Medicine and Rehabilitation, Centre Hospitalier de l’Université de Montréal, Montreal, QC H2X 0A9, Canada
4. Department of Rehabilitation Medicine, School of Medicine, Ewha Woman’s University Seoul Hospital, Seoul 07804, Republic of Korea