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Cell viability (n = 3) of WS-1 human skin fibroblasts incubated with five kinds of hydrogel dressings including hydroxyethyl cellulose (HEC), sacchachitin (SC), chitosan (CS) and hyaluronic acid (HA and aECMHCl,25 and three kinds of composite hydrogel including aECMHCl,25/SC, HA/SC and CS/SC at a concentration of 0.005%, 0.01%, 0.05%, 0.1% and 0.5% for 72 h. Values are presented as the mean ± standard deviation. * p < 0.05, compared to H2O.
