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. 2016 Dec 5;7(1):37–51. doi: 10.1007/s13555-016-0160-3

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© The Author(s) 2016

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 5 — Biopsy from the neck of a patient with acanthosis nigricans, showing histological features of orthokeratotic hyperkeratosis, mild acanthosis, and papillomatosis (hematoxylin and eosin, original magnification ×40)