About The Medical Condition Trial, Cross-Over

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Find the definition of the medical term Trial, Cross-Over. Trial, Cross-Over defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.

Trial, Cross-Over

Trial, Cross-Over Medical Condition Defined & Explained
Trial, Cross-Over Medical Condition

What's The Definition Of The Medical Condition Trial, Cross-Over?

Studies comparing two or more treatments or interventions in which the subjects or patients, upon completion of the course of one treatment, are switched to another. In the case of two treatments, A and B, half the subjects are randomly allocated to receive these in the order A, B and half to receive them in the order B, A. A criticism of this design is that effects of the first treatment may carry over into the period when the second is given. (Last, A Dictionary of Epidemiology, 2d ed)

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