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Figure 1 Representative light micrographs (x40) of arterial segments from the three treatment groups: (A) BE-treated artery (extent of injury = 0.23, neointimal area = 0.24 mm²); (B) PTCA only–treated artery (extent of injury = 0.29, neointimal area = 1.00 mm²); and (C) vehicle only–treated artery (extent of injury = 0.23, neointimal area = 1.3 mm²).