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(A, B) Hematoxylin and eosin (HE) staining from ascending aorta of canines. Magnification: 100×, scale bar: 200 μm and magnification: 400×, scale bar: 50 μm. (C, D) Transmission electron microscope images showed the ultrastructural changes of ascending aorta in sham and OSA dogs. Magnification: 10000× and magnification: 12000×, scale bar: 2 μm.
