Fig. 2From: Reconsidering N component of cancer staging for T1-2N0-2M0 small-cell lung cancer: a retrospective study based on multicenter cohortThe distribution of ELNs and LNR in the SEER database (A) and MCDB from China (B). The survival curves based on ELNs were in the SEER database (C) and the pN0 patients of SEER database (D). The survival curves based on LNR were in the SEER database (E) and the pN1-2 patients of SEER database (F)Back to article page