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The characterization of BMSCs. Morphological identification (a) and proliferative activity (b) of BMSCs in passage 3, 5 and 8. (c) Surface antigen assay of BMSCs by flow cytometry indicated positive CD29, CD44, CD90 and negative CD34 and CD45. (d) Multipotency determination of BMSCs by adipogenic, osteogenic and chondrogenic induction. Scale bars: 30 μm.
