NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,380 terms related to cancer and medicine.
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- listen (BY-oh-MAR-ker)
- A biological molecule found in blood, other body fluids, or tissues that is a sign of a normal or abnormal process, or of a condition or disease. A biomarker may be used to see how well the body responds to a treatment for a disease or condition. Also called molecular marker and signature molecule.