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. 2020 Jul 9;17(9):1086–1095. doi: 10.1016/j.jacr.2020.07.001

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© 2020 American College of Radiology.

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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Fig 1 — Volumes of all radiology studies for 2020 calendar weeks 1 to 21 are depicted in this graph showing each of six academic medical systems (AMSs) compared against the prior year’s similar-interval volume as a result of the coronavirus disease 2019 pandemic. The AMSs include three low-surge AMSs (system 1, system 2, and system 3), and three high-surge AMSs (system 4, system 5, and system 6). The lowest-volume AMS, system 2, suffered the least drop in volume and most rapid approach to recovery, and the largest AMS, system 4, suffered the largest drop in volume.