8Nguyen NT,Hinojosa MW,Smith BR,et al.Thoraeoscopic construe- tion of an intruthoracic esophngngastric anastomosis using a circular: transoral placement of the anvil. Ann Thorac Surg,2008,86 (3): 989-992.
9Tseng LN, Berends F J, Wittieh P, et al.Port- sitemetastases, impact of local tissue trauma and gas leakage.Surg Endosc, 1998,12 (12) : 1377-1380.
