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Cell engraftment in SCID mice heart and cardiogenic differentiation. Confocal images (0.5 μm width) of heart sections of SCID mice at 4 weeks after myocardial injection of CPCs labeled with GFP. (A, B) Heart sections were stained for GFP (green), DAPI (blue), and α-actinin (red). Scale bars: 25 μm. GFP, green fluorescent protein; SCID, severe combined immunodeficiency.
