NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,917 terms related to cancer and medicine.

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physician assistant
(fih-ZIH-shun uh-SIS-tunt)
A health professional who is licensed to do certain medical procedures under the guidance of a doctor. A physician assistant may take medical histories, do physical exams, take blood and urine samples, care for wounds, and give injections and immunizations. Also called PA.