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Osteoblast cytocompatibility (proliferation behaviour) with 0A, 50A and 70A chitosan–cellulose hydrogel beads based on the MTT assay over the timeframe of 192 h. Values are expressed as percentage of the means ± SD (n = 4). Statistical significance was defined as * p < 0.05, ** p < 0.005, *** p < 0.001 as compared to control sample (ANOVA test).
