1. Department of Molecular Science and Technology, Ajou University, Suwon, Korea.
2. Division of Biomedical and Bioengineering Sciences, Inha University College of Medicine, Incheon, Korea.
3. Cell Therapy Center, Ajou University Medical Center, Suwon, Korea.
4. Department of Orthopedic Surgery, Ajou University School of Medicine, Suwon, Korea.
5. Department of Physiology, Inha University College of Medicine, Incheon, Korea.