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Bright field images (X200) of human lung tissue cut at (A) 10, (B) 20 and (C) 50 μm section thicknesses and mounted on glass slides. Scale bar = 100 μm. Presence of one pulmonary artery in the lung section. In the inset of (A) is shown an optical image of an AFM tip indenting lung tissue. White crosses indicate the location of the 5 points of measurement onto the vessel wall. Scale bar = 50 μm.
