Department of Colorectal Surgery;
National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital;
Chinese Acad-emy of Medical Sciences and Peking Union Medical College;
Beijing;
100021;
China;
Department of Colorectal Surgery;
National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital;
Chinese Acad-emy of Medical Sciences and Peking Union Medical College;
Beijing;
100021;
China;
Department of Colorectal Surgery;
National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital;
Chinese Acad-emy of Medical Sciences and Peking Union Medical College;
Beijing;
100021;
China;
Department of Colorectal Surgery;
National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital;
Chinese Acad-emy of Medical Sciences and Peking Union Medical College;
Beijing;
100021;
China;
Department of Colorectal Surgery;
National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital;
Chinese Acad-emy of Medical Sciences and Peking Union Medical College;
Beijing;
100021;
China;
Department of Colorectal Surgery;
National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital;
Chinese Acad-emy of Medical Sciences and Peking Union Medical College;
Beijing;
100021;
China;
Department of Colorectal Surgery;
National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital;
Chinese Acad-emy of Medical Sciences and Peking Union Medical College;
Beijing;
100021;
China;