1. Department of Orthopaedic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
2. Molecular Therapy Lab, Department of Orthopaedic Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, United States
3. Center for Cellular and Molecular Engineering, Department of Orthopaedic Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania 15219, United States
4. Department of Plastic Surgery, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
5. McGowan Institute of Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15219, United States