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Effect of EPO on improving the migration capacity of BMSCs in vitro. (A) Images of the BMSCs under a light microscope, magnification ×400. The BMSCs were dyed with crystal violet and the cells transplanted were violet. (B) Transwell migration assay results. Cells were measured three times, then the average was taken. Results are presented as the mean ± standard deviation. *P<0.001 vs. BMSCs alone group. EPO, erythropoietin; BMSCs, bone marrow mesenchymal stem cells.
