contrast

Coloured liquid is swallowed or put into the body with a needle – it is a type of dye to help some things be seen more clearly. Pictures are taken using other tests such as a CT scan or an MRI scan or PET scans.

clinical trials

Research conducted with the patient’s permission, which usually involves a comparison of two or more treatments or diagnostic methods. The aim is to gain better understanding of the underlying disease process and/or methods to treat it. A clinical trial is conducted with a rigorous scientific method for determining the effectiveness of a proposed treatment.

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