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. 2016 Apr 19;16:22. doi: 10.1186/s12893-016-0135-4

Fig. 4.

Fig. 4

Disease-free survival (DFS) and overall survival (OS) curves of high-risk and non-high-risk group. The upper curves represent the DFS and OS of the non-high-risk group, while the lower curves are DFS and OS of the high-risk group