Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College,Beijing 100730, China;
Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College,Beijing 100730, China;
Department of Orthopaedic Surgery, Peking Union Medical College Hospital, Chinese Academy of Medical Science and Peking Union Medical College,Beijing 100730, China;
Department of Orthopaedic Surgery, Charing Cross Hospital, London W6 8RF, UK;