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Meta-analyses of treatment outcomes between laparoscopic and open D2 gastrectomy. A: Three-year disease-free survival; B: Five-year disease-free survival; C: Three-year overall survival; D: Five-year overall survival. LGD2: Laparoscopic gastrectomy with D2 extended lymph node dissection; OGD2: Open gastrectomy with D2 extended lymph node dissection.
