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U.S. National Institutes of Health National Cancer Institute
Dictionary of Cancer Terms
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control group

 In a clinical trial, the group that does not receive the new treatment being studied. This group is compared to the group that receives the new treatment, to see if the new treatment works.

Previous Definitions:continuum of care, contraindication, contralateral, contrast material, control animal
Next Definitions:controlled clinical trial, controlled low-voltage electrical stimulation, controlled study, conventional medicine, conventional therapy