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. 2022 Dec 7;38(1):47–56. doi: 10.1097/JMQ.0000000000000094

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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 3. — Vax the Max control chart of COVID-19 vaccine administration by PDSA cycles. Abbreviation: PDSA, plan-do-study-act.