Key Record Dates
| ClinicalTrials.gov Identifier: | NCT04296643 |
|---|---|
| Brief Title: | Medical Masks vs N95 Respirators for COVID-19 |
| First Submitted : | March 3, 2020 |
| First Submitted that Met QC Criteria : | March 3, 2020 |
| First Posted : | March 5, 2020 |
| Last Update Submitted that Met QC Criteria : | January 11, 2023 |
| Last Update Posted : | January 12, 2023 |