Fig. 4From: Individual or combined transcatheter arterial chemoembolization and radiofrequency ablation for hepatocellular carcinoma: a time-to-event meta-analysisPublication bias evaluated by the funnel plots of TACE+RFA vs TACE or RFA alone for HCC. a OS of TACE+RFA vs TACE; b RFS of TACE+RFA vs TACE; c OS of TACE+RFA vs RFA; d RFS of TACE+RFA vs RFABack to article page