PRIMARY OBJECTIVE:
I. To identify a biomarker (or biomarkers) that is present when disease is present (i.e., at diagnosis or recurrence) and not present when disease is absent (i.e., after treatment, in HPV negative patients or in normal controls).
OUTLINE: This is an observational study.
Patients undergo blood sample collection, saliva sample collection, complete questionnaires and have their medical records reviewed on study.
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