Figure 2From: Prognostic impact of serum CYFRA 21–1 in patients with advanced lung adenocarcinoma: a retrospective study Kaplan-Meier curves for overall survival in four groups, EGFR mutation status- stratified by PCV. M+: mutant EGFR, M-: wild-type EGFR, PCV: pretreatment CYFRA 21–1 value.Back to article page