title: Prophylactic treatment of uninvolved lymph nodes.
mesh_terms: D006258:Head and Neck Neoplasms / Q000473:pathology / Q000628:therapy; D006801:Humans; D008197:Lymph Node Excision; D008198:Lymph Nodes / Q000528:radiation effects; D008207:Lymphatic Metastasis / Q000517:prevention & control*