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Photomicrographs of rabbit iliac arteries stained with verHoeff tissue elastin stain 14 days after denuding balloon withdrawal injury. Neointima separates the internal elastic lamina (arrows) from the lumen. Rabbits were treated every 48 hr with (A) NaCl, (B) IgG, or (C) M1/70, directed against the α subunit of Mac-1. Original magnification: ×200.
