1. Department of Surgery, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
2. Orthopaedics and Traumatology, Taipei Veterans General Hospital, Taipei, Taiwan
3. Stem Cell Laboratory, Department of Medical Research and Education, Taipei Veterans General Hospital, Taipei, Taiwan
4. Institute of Polymer Science and Engineering, National Taiwan University, Taipei, Taiwan
5. Institute of Clinical Medicine, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan
6. Institute of Pharmacology, Faculty of Medicine, National Yang-Ming University, Taipei, Taiwan