Elective irradiation of subclinical disease in cancers of the head and neck.
D002294:Carcinoma, Squamous Cell / Q000532:radiotherapy*; D006258:Head and Neck Neoplasms / Q000532:radiotherapy*; D006801:Humans; D007822:Laryngeal Neoplasms / Q000532:radiotherapy; D008198:Lymph Nodes / Q000528:radiation effects; D009062:Mouth Neoplasms / Q000532:radiotherapy*; D010610:Pharyngeal Neoplasms / Q000532:radiotherapy; D011879:Radiotherapy Dosage; D012468:Salivary Gland Neoplasms / Q000532:radiotherapy; D014062:Tongue Neoplasms / Q000532:radiotherapy