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Cellular toxicity of plant extracts. Huh-7 cells were cultured in the presence of given concentrations of plant extracts (A) F3, (B) F4, and (C) F5. The viability was monitored using an MTS-based viability assay after 24, 48, and 72 h. Data are expressed as a ratio to control, i.e., the condition without extracts. Data are means of values obtained in three independent experiments performed in triplicate. Error bars represent SEM.
