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. 2021 Jan 15;8:615850. doi: 10.3389/fbioe.2020.615850

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Copyright © 2021 Liang, Liu, Xu, Huang, Shen, Chen and Luo.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Isolation and identification of hucMSC-exo. (A) hucMSC surface markers were detected by flow cytometry analysis. (B) Morphology of purified hucMSC-exo. Scale bar: 100 nm. (C) Western blotting shows that CD9, CD63, and Alix were expressed in hucMSC-exo isolated from two umbilical cord samples (Panels 1 and 2).