| Original, observational (prospective or retrospective) studies |
| Included patients with coronavirus disease 2019 (COVID-19) |
| Documented use of either angiotensin-converting enzyme (ACE) inhibitors or angiotensin receptor blockers (ARBs) |
| Reported frequency, percentage, and/or adjusted estimate of mortality or disease severity and/or adverse clinical outcomes (septic shock, admission to intensive care units) associated with COVID-19 |
| From any region or language |
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