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Results of microcomputed tomography. (A) Two-dimensional contour plots of mean percent bone volume (%BV) separated into PC and IM regions showing 0%–30% BV. (B) Historical data showing the empty defect in the canine femoral multidefect (CFMD) at 4 weeks in the IM region (2–9 mm from the bottom of the defect). (C) 2D plot illustrating %BV as a function of radial position. PC and IM regions are plotted for heparinized bone marrow aspirate (hBMA) and MS/HA+W2 defect sites
