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Kaplan–Meier curves comparing overall survival between anti-EGFR pretreated patients (broken red line) and with no pretreatment (solid black line). Patients with anti-EGFR pretreatment tended toward a longer survival (median 9.4 [IQR 7.6 to 12.5] months vs. 4.8 [IQR 4.3 - 5.7] months respectively, log-rank p=0.187).
