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. 2014 Sep 15;47(3):424–435. doi: 10.4143/crt.2013.266

Fig. 1.

Fig. 1.

Kaplan-Meier curve of progression-free survival for maintenance therapy post-induction. These are 4 curves superimposed on one plot and, as this was not a randomized study of 4 arms, they should not be directly compared. CI, confidence interval; PFS, progression-free survival.