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The assessment of potential publication bias in the meta-analysis. (A): The Begg’s test for the pooled results of difference between two groups. (B) The Deek’s test for the diagnostic meta-analysis. (C): The Begg’s test for the progression free survival meta-analysis.; (D): The Begg’s test for the overall survival meta-analysis; (E): The Begg’s test for the progression free survival meta-analysis in CRPC; (F): The Begg’s test for the overall survival meta-analysis in CRPC.
