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Images of the degradation process of the scaffolds set in the sodium citrate solution, from (a) 0 min, (b) 10 min, (c) 20 min, (d) 30 min, (e) 40 min, (f) 50 min, when the C/A is 1000% (mol/mol, %). (g) The relation of the total degradation time of the scaffolds to the mole ratio of C/A. (h) The relation curve between the degradation time of the printed constructs and amount of sodium citrate added to the culture medium.
