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Storage modulus for hydrogels at 0.7% (w/v) gelatin, 0.1% (A), 0.4% (B), 0.7% (C) (w/v) freshly prepared PVA after 28 days of accelerated aging conditions at 40 °C and 75% RH. Commercial treatments Zudenina® and Microdacyn® are also included for comparison.
