[ExI] COVID unexpected benefit

[BillK]

Pandemic-related decline in injuries related to women wearing high-heeled shoes:
Analysis of U.S. data for 2016-2020

In 2020 there were an estimated 6,290 high-heel related emergency
department visits involving women ages 15-69, down from 16,000 per
year in 2016-2019. The 2020 decline began after the start of the
COVID-19 shutdowns on March 15.

<https://www.medrxiv.org/content/10.1101/2021.12.26.21268426v1.full.pdf>
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BillK