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. 2023 Apr 21:1–17. Online ahead of print. doi: 10.1007/s10729-023-09636-5

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© The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2023, Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement 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.

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Fig. 4 — Histogram of (a) number of days to clear the backlog $Q 0$ , and (b) number of surgeries missing due days for the optimal policy with 100 $Q 1$ simulated cases