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α5β1 and αvβ3 integrin bound to immobilized bFN, RGD-SA, and bFN + RGD-SA: (a) larger than αvβ3 integrin binding and (b) larger than α5β1 integrin binding. (*) Statistically different from bFN and RGD-SA. Error bars represent standard error of the mean (n = 4). Statistical differences (p < 0.05).
