Department of Orthopedics,Second Affiliated Hospital,Lanzhou University,Lanzhou 730030,China;
Department of Orthopedics,Second Affiliated Hospital,Lanzhou University,Lanzhou 730030,China;
Department of Orthopedics,Second Affiliated Hospital,Lanzhou University,Lanzhou 730030,China;
Department of Orthopedics,Second Affiliated Hospital,Lanzhou University,Lanzhou 730030,China;
Department of Orthopedics,Second Affiliated Hospital,Lanzhou University,Lanzhou 730030,China;