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Compressive mechanical properties of hydrogel scaffolds with and without embedded cells. (A) Hydrogel scaffold specimen in the compression mode clamps. (B) Average and standard deviation values of stiffness, K, for the scaffolds (n=4). (C) Average and standard deviation values of maximum stress, σmax (n=4). (D) Representative picture of a 5x5x1mm3 3D-bioprinted scaffold in a well of a 24-well plate. *p < 0.05, ***p < 0.001, ****p < 0.0001.
