title: [Head and neck tumors -- PET-CT is superior to PET alone in the diagnosis and therapy planning].
mesh_terms: D006258:Head and Neck Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging; D006801:Humans; D049268:Positron-Emission Tomography; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed