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. 2011 Jun 16;6(6):e21085. doi: 10.1371/journal.pone.0021085

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Petrone et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Representative bone ground sections observed under transmitted light microscope: A. Mid shaft of fibula showing increased cortical thickness, reduced medullary cavity and a prominent exostosis (arrow) abnormally exceeding the original shape of the bone surface, 40-year-old male; B. Higher magnification of the insert of figure A, showing bone cancellization, enlarged Haversian systems and disordered lamellar architecture; C. Mid shaft of femur with widespread deficiency of the Haversian lamellar systems (arrow), extensive mottling of bone matrix and several enlarged Haversian canals, 15-year-old male. Note the presence of several linear formation defects (arrows); D. Mid shaft of tibia with osteonic texture locally poor, mottled bone matrix and an extremely enlarged Haversian canal (hc), 30-year-old female. Note the extensive and irregular cracking (arrows) induced by exposure of victims' corpses to the hot pyroclastic surge. B, C and D images are at the same magnification.