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(A) Percentage viability of L929 cells exposed to different concentrations of the Glycyrrhiza uralensis extract in the MTT assay. The same lowercase letters show no significant difference in cell viability (%) between the experimental groups (p > 0.05). (B(a)) L929 cells exposed to negative control, (B(b)) L929 cells exposed to G. uralensis extract at a concentration of 50 µg/mL, and (B(c)) L929 cells exposed to G. uralensis extract at a concentration of 200 µg/mL for 24 h.
