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. 2017 Jun 28;3(6):e1700564. doi: 10.1126/sciadv.1700564

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Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 3 — (A) Skull 1: Fragment of frontal bone with carvings. (B) Fragment of left parietal bone with drilled perforation. (C) Skull 2: Fragment of right parietal bone with carvings. (D) Skull 3: Fragment of frontal bone with carvings. Credit: Julia Gresky, DAI.