Fig. 2
From: Proportion and clinical features of never-smokers with non-small cell lung cancer

Kaplan-Meier overall survival curves of 1860 patients with non-small cell lung cancer (NSCLC) according to smoking status
From: Proportion and clinical features of never-smokers with non-small cell lung cancer
Kaplan-Meier overall survival curves of 1860 patients with non-small cell lung cancer (NSCLC) according to smoking status