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Time-lapse video cinematography of a BMPC-rich elutriation fraction cultured in DMEM-20% FCS observed by phase-contrast microscopy. At day 2 (a), there are small, round cells in clusters and a few cells with pseudopods. By day 6 (b), there are many large, fibroblast-like cells and large, round, stromal cells arising from a cluster of small, round cells.
