Fig. 7From: Incidence, survival comparison, and novel prognostic evaluation approaches for stage iii-iv pulmonary large cell neuroendocrine carcinoma and small cell lung cancerThe 1-year, 2-year, and 3-year ROC curves of the training cohort and internal validation cohort of LCNEC (a-b) and SCLC (c-d), and the external validation cohort of SCLC (e). Abbreviation: ROC, receiver operating characteristic; AUC, area under the curve; LCNEC, large cell neuroendocrine carcinoma; SCLC, small cell lung cancerBack to article page