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Audio Interchange File Format  |  1996-11-08  |  383.2 KB  |  1 channel  |  11,025 sample rate  |  17 seconds
Transcription: Brain scan. A picture of the brain taken after the intravenous injection of a radioactive tracer. CT and MRI scans have in most cases replaced such brain scans since CT and MRI tend to discover smaller lesions and are more useful for following up the effects of therapy.