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VSMCs were cultured in vitro and identified by immunofluorescence staining with FITC monoclonal anti-α-smooth muscle actin antibody (×100). (A) Primary cells and the organization blocks; (B) VSMCs combined with FITC monoclonal anti-α-smooth muscle actin antibody gave off green lights. Other cells could not give off green lights. The nuclei of all the cells stained with DAPI displayed blue color.
