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. 2021 Nov 3;11:21568. doi: 10.1038/s41598-021-00428-x

Figure 1.

Figure 1

A schematic illustration of the participant selection process that was used in the present study. Of a total of 129,120 participants, 8,070 COVID-19 participants were matched with 32,280 control participants for age, sex, and income.