[On the status of the treatment of esophageal cancer. (First experiences with deep Co-60 therapy)].
D003035:Cobalt; D003037:Cobalt Radioisotopes; D004938:Esophageal Neoplasms; D006801:Humans; D011851:Radioactivity
D003037:Cobalt Radioisotopes; D003035:Cobalt
COBALT/radioactive; ESOPHAGUS/neoplasms