Treatment implications of postoperative chemoradiotherapy for squamous cell carcinoma of the oral cavity with minor and major extranodal extension

John R. de Almeida, Tra Truong, Nazir Mohemmed Khan, Jie Su, Jonathan C. Irish, Ralph Gilbert, David P. Goldstein, Shao Hui Huang, Brian O'Sullivan, Ali Hosni, Andrew Hope, John Waldron, Aaron R. Hansen, Anna Spreafico, Lillian L. Siu, Bayardo Perez‐Ordoñez, Wei Xu, Ilan Weinreb