Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China;
Department of Orthopedics, Cangzhou Central Hospital, Cangzhou, Hebei 061001, China;
Department of Epidemiology, Peking University Third Hospital, Beijing 100191, China;
Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China;
Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China;
Department of Orthopedics, Peking University Third Hospital, Beijing 100191, China;