http://www.w3.org/ns/prov#value | - Exclusion criteria included malignant neoplasms other than squamous cell carcinoma, a delay in surgery longer than 6 weeks from the time of staging computed tomography, and prior treatment of the neck or recurrent disease or a second primary.Main Outcomes and Measures Each patient was independently assigned a subjective score for the presence of ECS by 2 Certificate of Added Qualification???certif
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