Cobalt-60 beam therapy in carcinoma of the esophagus.
D002277:Carcinoma; D003035:Cobalt; D003037:Cobalt Radioisotopes; D004938:Esophageal Neoplasms; D006801:Humans
D003037:Cobalt Radioisotopes; D003035:Cobalt
COBALT/radioactive; ESOPHAGUS/neoplasms