Institution: | 1. Department of Orthopaedic Surgery and Graduate Program in Cell and Developmental Biology, Thomas Jefferson University, Philadelphia, PA, U.S.A.;2. Department of Orthopaedic Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, P.R. China;3. Department of Orthopaedics, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, P.R. China;4. Department of Orthopaedic Surgery, Shaghai First People''s Hospital, Shanghai, P.R. China |