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. 2019 Jul 31;9(41):23832–23842. doi: 10.1039/c9ra03641e

Fig. 2. Viscosity of the hydrogels used for 3D printing (A), swelling percentage (B), degradation percentage (C) and mass percentage calculated using ICP-MS (D) of the lyophilized hydrogels. * indicates a significant difference between sample groups with P < 0.005.

Fig. 2