title: Preoperative irradiation in cancer of the head and neck.
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000473:pathology / Q000532:radiotherapy* / Q000601:surgery; D006257:Head; D006258:Head and Neck Neoplasms / Q000473:pathology / Q000532:radiotherapy* / Q000601:surgery; D006801:Humans; D007822:Laryngeal Neoplasms / Q000473:pathology / Q000532:radiotherapy / Q000601:surgery; D008207:Lymphatic Metastasis; D009062:Mouth Neoplasms / Q000473:pathology / Q000532:radiotherapy / Q000601:surgery; D010610:Pharyngeal Neoplasms / Q000473:pathology / Q000532:radiotherapy / Q000601:surgery; D011882:Radiotherapy, High-Energy; D013997:Time Factors