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. 2020 May 26;8(2):250. doi: 10.3390/vaccines8020250

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© 2020 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 (http://creativecommons.org/licenses/by/4.0/).

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Changes of the CD4⁺ and CD8⁺ T cells in the blood of experimental pigs. (A) CD4; (B) CD8. * indicates the difference between the two groups is significant, p < 0.05.