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. 2020 Dec 15;201:106436. doi: 10.1016/j.clineuro.2020.106436

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Fig. 2 — Etiology of stroke by study periods.

Criteria stratified by the Trial of Org 10172 for Acute Stroke Treatment.

12-weeks epochs include; COVID-19 period: 03/01/2020–05/31/2020, seasonal pre-COVID-19 period: 03/01/2019–05/31/2019 and immediate pre-COVID-19 period: 11/01/2019–01/31/2020.