Fig. 4From: Reconsidering N component of cancer staging for T1-2N0-2M0 small-cell lung cancer: a retrospective study based on multicenter cohortThe survival curves were based on ELNs and LNR (A). The survival curves based on the N modification were in the SEER database (B) and the MCDB from China (C). The survival curves based on the current pN modification were in the SEER database (D) and the MCDB from China (E)Back to article page