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Audio Interchange File Format  |  1996-12-09  |  463.1 KB  |  1 channel  |  11,025 sample rate  |  21 seconds
Transcription: radiotherapy, the use of high energy radiation from x-ray machines, cobalt, radium or other sources for control or cure of cancer. It may reduce the size of a cancer before surgery or be used to destroy any remaining cancer cells after surgery. Radiotherapy can be helpful in treating recurrent cancers or relieving symptoms.