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(a) Representative scanning electron micrography (SEM) images of 10% freeze-dried GelMA pores. (b) Quantification of the GelMA pore size. (n=51) (c) Effect of the sterilization on the rate of enzymatic biodegradation of 10% GelMA. (n=3) * p<0.05; ** p<0.01; *** p<0.001; **** p<0.0001.
