title: Role of radiotherapy.
mesh_terms: D018288:Carcinoma, Small Cell / Q000532:radiotherapy; D004307:Dose-Response Relationship, Radiation; D006801:Humans; D006931:Hyperbaric Oxygenation; D008175:Lung Neoplasms / Q000473:pathology / Q000532:radiotherapy*; D008722:Methods; D009362:Neoplasm Metastasis; D009502:Neutrons; D010100:Oxygen / Q000378:metabolism; D011379:Prognosis; D011836:Radiation Tolerance; D011878:Radiotherapy / Q000009:adverse effects; D011879:Radiotherapy Dosage; D013997:Time Factors
chemical_list: D010100:Oxygen