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Characterization of UC-MSCs. (a) Morphological changes and characterization of UC-MSCs. (b) The viability of UC-MSCs after plating from day 1 to day 7 measured by MTT assay. (c) The expression of cell surface markers measured by flow cytometry. UC-MSCs positively expressed CD13, CD73, CD90, and CD105 but negatively expressed CD34 and CD45. ∗ represents p < 0.05.
