Fig. 5From: Overexpression of microRNA-21 strengthens stem cell-like characteristics in a hepatocellular carcinoma cell lineOverexpression of miR-21 promotes the growth of subcutaneous xenograft tumors in nude mice. a Representative xenograft tumors grown for 34 days using MHCC-97H cells stably overexpressing miR-21 or the corresponding negative control (NC) cells. b The tumor volume and c tumor weight were compared between the two stable cell lines. *p < 0.05, compared with NCBack to article page