1. Department of Rehabilitation Medicine, Dankook University College of Medicine, Cheonan, Korea.
2. Department of Rehabilitation Medicine, National Rehabilitation Center, Seoul, Korea.
3. Department of Nanobiomedical Science, BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan, Korea.
4. Institute of Tissue Regeneration Engineering, Dankook University, Cheonan, Korea.