Cancer of the larynx and pharynx.
D004219:District of Columbia; D005500:Follow-Up Studies; D006801:Humans; D007822:Laryngeal Neoplasms / Q000401:mortality* / Q000532:radiotherapy / Q000601:surgery / Q000628:therapy*; D009303:Nasopharyngeal Neoplasms / Q000401:mortality; D010610:Pharyngeal Neoplasms / Q000401:mortality* / Q000532:radiotherapy / Q000601:surgery / Q000628:therapy*; D012189:Retrospective Studies