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Cytometric analyses of cell viability for cells stained with PI and Annexin V-FITC. PBMCs were incubated in the absence or presence of fullerenol from 50 to 150 mg/L for 24 h (37 °C, 5 % CO2 atmosphere, 100% relative humidity). The differences between control and fullerenol-treated cells were not statistically significant.
