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Comparison of Pl-s and plasma as medium supplements. Human primary bone marrow-derived mesenchymal stem cells (BM-MSC) and human cell lines growing either in adhesion (HeLa) or in suspension (U-937) were cultured either with Pl-s or plasma as medium supplements. Cell proliferation was determined by direct cell counting. Number (n) of cell cultures used for the experiments is indicated on the graph for each cell type.
