Third Department of General Surgery;
Xijing Hospital;
Fourth Military Medical University of Chinese PLA;
Xi''an 710032;
Shaanxi Province;
China Third Department of General Surgery;
Xijing Hospital;
Fourth Military Medical University of Chinese PLA;
Xi''an 710032;
Shaanxi Province;
China Third Department of General Surgery;
Xijing Hospital;
Fourth Military Medical University of Chinese PLA;
Xi''an 710032;
Shaanxi Province;
China Third Department of General Surgery;
Xijing Hospital;
Fourth Military Medical University of Chinese PLA;
Xi''an 710032;
Shaanxi Province;
China;