Lassen, Pernille, et al. “Correlation and Prognostic Impact of Human Papilloma Virus and p16-Expression in Advanced Hypopharynx and Larynx Cancer Treated With Definitive Radiotherapy”. Acta Oncologica, vol. 60, no. 5, May 2021, pp. 646-8, doi:10.1080/0284186X.2021.1885059.