title: [Results of radiation therapy of cancer of the middle region of the esophagus].
mesh_terms: D000328:Adult; D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000532:radiotherapy*; D004938:Esophageal Neoplasms / Q000175:diagnosis / Q000532:radiotherapy*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D011882:Radiotherapy, High-Energy; D011883:Radium / Q000627:therapeutic use
chemical_list: D011883:Radium