[1]Tumor Surgery;
Baoding First Central Hospital;
Baoding071000China;
[2]Radiotherapy Department;
Affiliated Hospital of Hebei University;
Baoding071000China;
[3]Endoscopy Room;
Baoding First Central Hospital;
071000China;
[1]Tumor Surgery;
Baoding First Central Hospital;
Baoding071000China;
[1]Tumor Surgery;
Baoding First Central Hospital;
Baoding071000China;
Laparoscopic surgery; Neoadjuvant chemotherapy; Low rectal cancer; CEA; VEGF; CA724; CA242; LEP; Immunologic function;