NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,360 terms related to cancer and medicine.
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- unsealed internal radiation therapy
- listen (...RAY-dee-AY-shun THAYR-uh-pee)
- Radiation therapy given by injecting a radioactive substance into the bloodstream or a body cavity, or by swallowing it. This substance is not sealed in a container.