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Key Record Dates

ClinicalTrials.gov Identifier: NCT04848584
Brief Title: Pfizer-BioNTech COVID-19 Vaccine Effectiveness Study - Kaiser Permanente Southern California

First Submitted : March 30, 2021
First Submitted that Met QC Criteria : April 15, 2021
First Posted : April 19, 2021

Last Update Submitted that Met QC Criteria : February 1, 2024
Last Update Posted : February 6, 2024