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Forest plot of hazard ratios for the prediction of overall (a) and progression-free survival (b) by high-expressing miR-200 family members in tissue samples. Funnel plot showing publication bias of the overall (c) and progression-free survival (d) prediction by high-expressing miR-200 family members in tissue samples. ∗Sample from grade IV astrocytoma. †Sample from grade III astrocytoma.‡, §Samples from different tissue collection.
