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A. progression-free survival (PFS) and B. overall survival (OS) of patients with advanced non-small cell lung cancer that were treated. The differences in median PFS (HR 1.03, 95% CI 0.71-1.41, P = 0.98) and OS (HR 0.86, 95% CI 0.57–1.30) were not statistically significant between the nimotuzumab plus gefitinib and the gefitinib arm.
