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Histological observations using hematoxylin–eosin staining. The staining showed more osteocytes, more trabeculae, and smaller trabecular separation in the 18 rats implanted with CBD-BMP2 + PRP (a, b) and the 18 rats CBD-BMP2 (c, d) than the 17 rats with PRP (e, f). (A color version of this figure is available in the online journal.)
