[Radiotherapy of cancer of the superior portion of the esophagus; survival after more than three years].
D004938:Esophageal Neoplasms; D006801:Humans; D009369:Neoplasms; D011878:Radiotherapy
ESOPHAGUS/neoplasms; RADIOTHERAPY
Radiothérapie du cancer de l'oesophage supérieur; une survie de plus de 3 ans.