Learning curve for gastric cancer patients with laparoscopy-assisted distal gastrectomy: 6-year experience from a single institution in western China.

Likewise, the estimated blood loss dropped from 175.2 mL in 2006 to 146.8 mL in 2011, being significantly different between groups A and B ( P = 0.011), but without any significant difference in the comparison of groups B, C, D, and E ( P = 0.218), indicating that it reached a plateau in 2008 after a decreasing trend in 46 cases from 2006 to 2007 (Fig. 2 D and figure S2).

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