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Mineralization degree determined on BSE images obtained by scanning electron microcopy of the tibias from the same rat, original magnification x200. The cracks occur when the blocks are placed under vacuum in the SEM. A) BTX injected side (right), B) saline injected side (left), C) frequency distribution of the grey level in the two groups: blue= saline-injected side and red= BTX-injected side.
