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. 2021 Aug 13;5(16):3053–3061. doi: 10.1182/bloodadvances.2021005094

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© 2021 by The American Society of Hematology

This article is made available via the PMC Open Access Subset for unrestricted reuse and analyses in any form or by any means with acknowledgment of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic or until permissions are revoked in writing. Upon expiration of these permissions, PMC is granted a perpetual license to make this article available via PMC and Europe PMC, consistent with existing copyright protections.

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Figure 3. — A longer time since last exposure to anti-CD20 Abs is associated with increased seropositivity rates. (A) Hazard ratio (HR) to achieve positive anti-SARS-CoV-2 serology in all patients with B-NHL who were exposed to anti-CD20 Abs is plotted against months from last exposure to anti-CD20 Abs, using a Kaplan-Meier HR curve. (B) HR to achieve positive anti-SARS-CoV-2 serology in patients with a-B-NHL and i-B-NHL who were exposed to anti-CD20 Abs is plotted against months since last exposure to anti-CD20 Abs, using a Kaplan-Meier HR curve.