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(A) Proliferative data of A1 and H1 AFS cells cultured on 2, 5, 15, and 50 kPa substrates and on tissue culture plastic. MTS assays were performed on days 1, 4, and 7 (n=3). Significance: *: p<0.05; **: p<0.01. (B) Representative phase contrast images of cells in culture at day 7.