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Immunophenotyping of ASC derived from donors of three age groups. Histograms of cell surface markers are demonstrated in ASC derived from three age groups (n = 3 in each group) at passage 3. The respective isotype controls are showed as a shaded histograms. ASC from the three age groups were all positive for CD13, CD34, CD44, CD90 and HLA-ABC, and negative for CD45 and CD56.
