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. 2021 Apr 20;110:247–257. doi: 10.1016/j.ijid.2021.04.021

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© 2021 The Author(s)

Since January 2020 Elsevier has created a COVID-19 resource centre with free information in English and Mandarin on the novel coronavirus COVID-19. The COVID-19 resource centre is hosted on Elsevier Connect, the company's public news and information website. Elsevier hereby grants permission to make all its COVID-19-related research that is available on the COVID-19 resource centre - including this research content - immediately available in PubMed Central and other publicly funded repositories, such as the WHO COVID database with rights for unrestricted research re-use and analyses in any form or by any means with acknowledgement of the original source. These permissions are granted for free by Elsevier for as long as the COVID-19 resource centre remains active.

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Boxplots of the accuracy indicators found from modeling the COVID-19 spread in administrative cities from January 20th to February 29th, 2020: (A) RMSE; (B) R²; (C) adjusted R². Note that several very large scatters in the RMSE boxplot are not shown for conciseness.