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. 2021 Sep 4;77:101374. doi: 10.1016/j.asieco.2021.101374

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© 2021 The Authors

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 — Gross commuting flows in Seoul and Daegu Provinces, in units of average number of commuting people. Notes: The figure shows gross commuting flows, in units of number of commuting people, averaged across weekdays and weekends, in Seoul and Daegu provinces in April 2019 and April 2020. Seoul has 25 municipalities and Daegu has 9 municipalities.