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. 2020 Apr 29;13(6):e008662. doi: 10.1161/CIRCEP.120.008662

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© 2020 American Heart Association, Inc.

This article is made available via the PMC Open Access Subset for unrestricted re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the COVID-19 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 1. — Trajectory of corrected QT interval (QTc) change in 201 patients receiving hydroxychloroquine±azithromycin. Change in QTc was seen starting on day 2 of therapy with max QTc being reached on day 4 by the majority of patients.