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Dose response curves for IFN-β-1b (Betaseron) and PEG-F111C proteins for inhibiting in vitro proliferation of human NIH: OVCAR-3 cells. NIH: OVCAR-3 cells were incubated with serial dilutions of the indicated test proteins for 4 days at 37°C in a tissue culture incubator. On day 4, cell number was quantified as described in the legend to Fig. 2. Data are means±SD of triplicate wells for each protein dilution. SD generally were <10% of the means.
