Tumor Surgery, Baoding First Central Hospital, Baoding 071000 China;
Radiotherapy Department, Affiliated Hospital of Hebei University, Baoding 071000 China;
Endoscopy Room, Baoding First Central Hospital, 071000 China;
Tumor Surgery, Baoding First Central Hospital, Baoding 071000 China;
Tumor Surgery, Baoding First Central Hospital, Baoding 071000 China;