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. 2018 Jul 3;15:45. doi: 10.1186/s12977-018-0427-0

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© The Author(s) 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted 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. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Extraction and identification of exosomes from CEFs. a The morphological characterization of exosomes under electron microscopy. The arrow indicates exosomes, 40–150 nm in size. b The purities of exosomes were also verified by western blot with anti-Hsp70, anti-Grp78 or anti-CD81