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The inhibition of PhIP-induced DNA strand breaks by DAS at 24, 48 and 72 h. MCF-10A cells were treated, harvested and analyzed as described in Materials and methods. Each bar on the graph represents the mean olive tail moment ± S.E.M. of three independent experiments. *Data significantly different from the DMSO treatment group (P<0.05). **Data significantly different from the PhIP treatment group (P<0.05).
