title: Letter: Prolonged survival of patients with extensive oat cell carcinoma treated with radiotherapy and cyclophosphamide (NSC-26271), vincristine (NSC-67574), and methotrexate (NSC-7040).
mesh_terms: D018288:Carcinoma, Small Cell / Q000532:radiotherapy / Q000628:therapy*; D003520:Cyclophosphamide / Q000627:therapeutic use*; D004359:Drug Therapy, Combination; D006801:Humans; D008175:Lung Neoplasms / Q000532:radiotherapy / Q000628:therapy*; D008727:Methotrexate / Q000627:therapeutic use*; D014750:Vincristine / Q000627:therapeutic use*
chemical_list: D014750:Vincristine; D003520:Cyclophosphamide; D008727:Methotrexate