AUTHOR=Gavrielatou Niki , Economopoulou Panagiota , Kotsantis Ioannis , Psyrri Amanda TITLE=Editorial: Immunology and Immunotherapy of Head and Neck Cancer JOURNAL=Frontiers in Oncology VOLUME=11 YEAR=2021 URL=https://www.frontiersin.org/journals/oncology/articles/10.3389/fonc.2021.815763 DOI=10.3389/fonc.2021.815763 ISSN=2234-943X