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. 2016 Feb 18;95(7):e2770. doi: 10.1097/MD.0000000000002770

FIGURE 4.

FIGURE 4

Differences in Kaplan–Meier curves of OS between surgery and no surgery groups stratified by tumor stage. Patients with AM at local or regional stage could benefit from surgery (P < 0.001 and P = 0.03). No statistical difference was observed in patients presenting distant metastasis (P = 0.268).