P06 HPV antibodies as a diagnostic and prognostic biomarker in head and neck cancers outside of the oropharynx: Insights from the Head and Neck 5000 study. (November 2022) - Schroeder, L.; Whitmarsh, A.; Brenner, N.; Thomas, S.; Simon, J.; Waterboer, T.; Ness, A.; Pring, M.