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. 2018 Dec 6;18:199. doi: 10.1186/s12905-018-0686-x

Fig. 7.

Fig. 7

Subgroup meta-analysis of studies with different cut off value assessing the association of ALDH expression and DFS/PFS. ALDH, Aldehyde dehydrogenase; HR, Hazard ratio; CI, confidence interval; DFS, disease-free survival; PFS, progression-free survival