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Medical Term:


Pronunciation: ko-in-ter-ven'shun


Application of additional diagnostic and/or therapeutic procedures to members of either the study group or control group in a randomized controlled trial. Such additional interventions besides those that are formally included in the study may introduce confounding variables and erode the validity of the results of the trial.

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.