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Angiogenic potential of ahMNCs-Clump II. (A) ahMNC-Clump II and/or HUVECs in Matrigel were injected into the subcutaneous tissue of immunodeficient mice. At 4 days after injection, Matrigels were retrieved and examined histologically. Scale bar = 100 μm. (B) Endothelial cells and pericytes were visualized by immunofluorescence for CD31 and αSMA, respectively. Scale bar = 50 μm.
