title: The importance of extranodal extension in metastatic head and neck squamous cell carcinoma, in the light of the new AJCC cancer staging system.
authors.affiliation: Department of Diagnostics and Public Health, University and Hospital Trust of Verona, Verona, Italy; ARC-NET Research Center, University and Hospital Trust of Verona, Verona, Italy. Electronic address: claudio.luchini@katamail.com.
authors.forename: Claudio
authors.initials: C
authors.lastname: Luchini
authors.affiliation: National Research Council, Neuroscience Institute, Aging Branch, Padova, Italy; Institute of Clinical Research and Education in Medicine (IREM), Padua, Italy.
authors.forename: Nicola
authors.initials: N
authors.lastname: Veronese
mesh_terms: D002294:Carcinoma, Squamous Cell; D006258:Head and Neck Neoplasms; D009367:Neoplasm Staging; D011379:Prognosis