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Cytotoxic activity of Bxb. Peritoneal macrophages were obtained and exposed in vitro to 2.9, 29, and 290 μg/mL of Bxb as described above. The cytotoxic percentage was observed at different times after Bxb exposition. Each point represents the mean value of samples from four experiments in different groups of five mice. Statistical differences between the treatments were P < 0.05.
