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. 2021 Dec 17;6(1):e677. doi: 10.1097/HS9.0000000000000677

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Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the European Hematology Association.

This is an open-access article distributed under the terms of the Creative Commons Attribution-Non Commercial-No Derivatives License 4.0 (CCBY-NC-ND), where it is permissible to download and share the work provided it is properly cited. The work cannot be changed in any way or used commercially without permission from the journal.

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Figure 1. — Percentage of SARS-CoV-2 binding inhibition (NAbs) (A) and anti-S-RBD levels (B) for the study population. The asterisk (*) denotes a statistically significant difference between the ninth month levels and the previous timepoints (P < 0.05). The boxplot borders correspond to the distribution’s quartiles. NAbs = neutralizing antibodies; RBD = receptor binding domain.