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Cytotoxicity analysis. Relative cellular surviving rates of human hepatoma HepG2 (A) or Huh-7 (B) cells treated with or without PA (4 μg/mL), or LT (0.2, 2, and 4 μg/mL). *P < 0.05, **P < 0.01, compared to respective PA groups. n = 6 (A, B).
