Fig. 2From: Bufalin-Loaded PEGylated Liposomes: Antitumor Efficacy, Acute Toxicity, and Tissue DistributionCytotoxicity of BF/PEG-LP in HepG2 (a), HCT116 (b), A549 (c), and U251 (d) cells. Data are presented as\( \overline{x} \) ± s (n = 6). *P < 0.05, **P < 0.01 vs. control group for each cell line. Abbreviations: BF/PEG-LP, bufalin-loaded PEGylated liposomes; DOX, doxorubicinBack to article page