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Key Record Dates Identifier: NCT00011492
Brief Title: Patient Evaluation for Head and Neck Surgery Branch Studies

First Submitted : February 22, 2001
First Submitted that Met QC Criteria : February 22, 2001
First Posted : February 23, 2001 (Estimate)

Last Update Submitted that Met QC Criteria : August 11, 2020
Last Update Posted : August 12, 2020