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A. H1, H9 and DF19 cells were analyzed after both 10/11 and 21/22 passages of culture on Ad-hMSCs feeder cells in 0, 0.4 or 4 ng/ml bFGF media. B. H9 and DF19 cells were analyzed after 13 and 8 passages of culture respectively on Ad-hMSCs feeder cells in 4, 20 or 100 ng/ml bFGF media. See also Figure S3.
