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(A) Relationship between maximum esophageal lesion area and survival. Statistical analysis revealed significant differences between maximum esophageal lesion area and survival. (X2 = 15.862, P = 0.001). (B) Survival in pathological N negative patients was statistically correlated with maximum esophageal lesion area (X2 = 10.138, P = 0.017). (C) Survival in pathological N positive patients was not correlated with maximum esophageal lesion area (X2 = 4.924, P = 0.177).
