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. 2022 Mar 15;12:870296. doi: 10.3389/fcimb.2022.870296

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Copyright © 2022 Zhang, Liang, Zhang, Wang, Cao, Gao, Li and Mo

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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Flow chart of SAA patients selected for the study. SAA, severe aplastic anemia; HSCT, hematopoietic stem cell transplantation; CMVR, cytomegalovirus retinitis.