NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,468 terms related to cancer and medicine.
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- internal medicine
- listen (in-TER-nul MEH-dih-sin)
- A branch of medicine that specializes in preventing, diagnosing, and treating diseases in adults, without using surgery. An internal medicine doctor is often a person’s main health care provider and may coordinate treatment given by other specialists.