Fig. 2From: Application of the new 8th TNM staging system for non-small cell lung cancer: treated with curative concurrent chemoradiotherapyDisease-free survival curves according to stage group in 7-TNM and 8-TNM. Curves of the stage group by 7-TNM a, and stage group by 8-TNM b. 7-TNM, seventh American Joint Committee on Cancer TNM staging system; 8-TNM, eighth American Joint Committee on Cancer TNM staging systemBack to article page