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. 2011 Feb 16;6(2):e17026. doi: 10.1371/journal.pone.0017026

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Bello 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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(A) Cut-marks and percussion marks on facial bones from Gough's Cave [GC 87(25), GC 87(29) and GC 87(87)] (scale = 10 mm). (a–g), Alicona 3D images of human modifications (scale = 1 mm). (B), photograph of percussion marks on the inferior labial border of the right central incisor (scale = 5 mm).