Multicenter Study

Is totally laparoscopic gastrectomy less invasive than laparoscopy-assisted gastrectomy?: prospective, multicenter study.

J. Gastrointest. Surg. 2008 Jun 1; 12 (6): 1015-21.
Comparative Study

Totally laparoscopic radical BII gastrectomy for the treatment of gastric cancer: a comparison with open surgery.

Surg Laparosc Endosc Percutan Tech. 2008 Aug 1; 18 (4): 369-74.
Comparative Study

Comparison of long-term outcomes of laparoscopy-assisted and open distal gastrectomy for early gastric cancer.

Surg Endosc. 2009 Aug 1;23(8):1759-63.