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. 2021 Nov 4;11(11):3154. doi: 10.3390/ani11113154

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© 2021 by the authors.

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 (https://creativecommons.org/licenses/by/4.0/).

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Figure A1 — References to donkeys being under-valued in the literature [90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111].