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Cell viability/proliferation of MC3T3-E1 pre-osteoblasts grown in culture media containing the extracts of the uncoated and CA-coated Mg alloy. (a) MTT assay, formazan absorbance as a measure of cell proliferation. Results are presented as means ± SD (n = 3); (b) Fluorescent microscopy images of green-labeled living cells after perfoming the LIVE/DEAD cell viability assay.
