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The anti-proliferative effect on breast epithelial (MCF 10A) and cancer cells (MDA-MB-231) of Aloe vera leaves extract, obtained (A) in 10 mM buffer phosphate, pH 7.0; (B) in hexane; and (C) in methanol. Results represent the means (percentage values) of 3 independent experiments performed in triplicate. The error bars show 95% confidence intervals.
