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Audio Interchange File Format  |  1996-11-08  |  393.7 KB  |  1 channel  |  11,025 sample rate  |  18 seconds
Transcription: Cooperative Groups. Clinical trials of new cancer treatments require many patients, generally more than any single physician or hospital can see. A number of physicians and or hospitals form a cooperative group to treat a large number of patients in the same way so that the effectiveness of a new treatment can be evaluated quickly.