Fig. 1From: Comparison of laparoscopic hepatectomy and percutaneous radiofrequency ablation for the treatment of small hepatocellular carcinoma: a meta-analysisFlowchart of search strategy and study selection. LH and 1047 underwent PRAF. Eight studies had NOS scores ranging from 6 to 8 (Fig. 2). The quality of the included literature was considered qualifiedBack to article page