Institution: | [1]Department of Orthopaedic, Chinese People's Liberation ArmyGeneral Hospital, Beijing 100853, China; [2]Department of-Orthopaedic, Third Clinical Medical College of Hebei Medical University, Hebei 050051, China; [3]Department of Orthopaedic, Beijing Tongren Hospital, Beijing100005, China; [4]Department of Orthopaedic, Shaheqiao Central Health Center, Hebei062452, China |