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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Scanning electron microscopy (SEM) of bovine bone mixed with blood. Many red blood cells and a thin layer of fibrin that only partially covered the biomaterial granules were observed; these appeared to be separated and not united.