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AFM height images, acquired with spherical Ø5 μm probe, indicates that the fine surface structure of the bovine articular surface may exhibit either amorphous (A) or fibrillar (B) structures, depending on location. (Z scale=10 μm. A: Rq = 262 nm and μAFM =0.280; B: Rq =292 nm and μAFM =0.119)
