NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,779 terms related to cancer and medicine.

Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.

subset analysis
(... uh-NA-lih-sis)
In a clinical study, the evaluation of results for some but not all of the patients who participated. The selected patients have one or more characteristics in common, such as the same stage of disease or the same hormone receptor status.