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Key Record Dates Identifier: NCT04337541
Brief Title: Reduction in COVID-19 Infection Using Surgical Facial Masks Outside the Healthcare System

First Submitted : April 2, 2020
First Submitted that Met QC Criteria : April 5, 2020
First Posted : April 7, 2020

Last Update Submitted that Met QC Criteria : July 29, 2020
Last Update Posted : August 3, 2020