Navigating the evidence for hepatocellular carcinoma treatment: Surgery vs radiofrequency ablation through sentiment and meta-analysis

Table 3 Excluded studies

Ref.	Study type	Treatment favored (OS)
Chong et al[11]	Retrospective comparative study	Resection
Chua et al[12]	Retrospective comparative study	Resection
Hsiao et al[15]	Retrospective comparative study	Resection
Kim et al[16]	Retrospective comparative study	No difference
Lai et al[17]	Retrospective comparative study	Resection/no difference
Liu et al[19]	Retrospective comparative study	Resection
Ng et al[21]	Randomized clinical trial	No difference
Song et al[24]	Retrospective comparative study	No difference
Song et al[23]	Randomized clinical trial	No difference
Wang et al[27]	Retrospective comparative study	Ablation/no difference
Wei et al[28]	Retrospective comparative study	Resection
Ye et al[30]	Retrospective comparative study	No difference/resection

OS: Overall survival.