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Antiproliferative effects of plant extracts on U2OS cells. (A) Screening of all extracts on viability of U2OS cells treated at 50 and 100 μg/mL concentrations. Bars indicate the means of six replicated experiments and represent the percentage of viable cells with respect to the control taken arbitrarily as 100%. (B) Dose–response curves of U2OS cell viability after treatment with the five most active extracts for 48 h.
