Supervoltage radiation therapy:  the University of Louisville; Louisville General Hospital.
D003035:Cobalt; D003037:Cobalt Radioisotopes; D006769:Hospitals, General; D006801:Humans; D011851:Radioactivity; D011878:Radiotherapy / Q000295:instrumentation*
D003037:Cobalt Radioisotopes; D003035:Cobalt
COBALT/radioactive; RADIOTHERAPY/apparatus and instruments