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(A) Representative 3D reconstructed images from micro-CT after the samples implanted in vivo (defects of skulls of rats) for 4 and 8 weeks, (B) Bone volume/tissue volume (BV/TV) within the defects for 4 and 8 weeks, (C) Bone mineral density (BMD) within the defects for 4 and 8 weeks (*p < 0.05 compared with PEEK, **p < 0.05 compared with PEEK). CT = computed tomography; PEEK = polyetheretherketone.
