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Audio Interchange File Format  |  1996-12-09  |  342.9 KB  |  1 channel  |  11,025 sample rate  |  16 seconds
Transcription: placebo, an inert substance used in a research study or clinical trial that resembles an actual medication. It is used to eliminate the improvement that may result from the belief that a medication is being given rather than the actual effect of the medication.