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Key Record Dates 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