History of irradiation in squamous cell carcinomas of the larynx and hypopharynx.
D002294:Carcinoma, Squamous Cell / Q000266:history* / Q000532:radiotherapy; D005060:Europe; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D007012:Hypopharyngeal Neoplasms / Q000266:history* / Q000532:radiotherapy; D007822:Laryngeal Neoplasms / Q000266:history* / Q000532:radiotherapy; D010610:Pharyngeal Neoplasms / Q000266:history*; D011878:Radiotherapy / Q000266:history*; D014481:United States