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Alkaline phosphatase activity after 3, 7, 14, and 21 days of cell–materials interaction: CaP+Ale (A), CaP+Dic (B), and CaP+HR (C). Data represent mean ± dev.st. of three independent experiments (n = 6). * p < 0.05; ° p < 0.01; # p < 0.001 vs. CaP.
