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(PROH-fih-LAK-tik KRAY-nee-ul ir-RAY-dee-AY-shun)
| | Radiation therapy to the head to reduce the risk that cancer will spread to the brain. |
| Previous Definitions: | Promacta, promegapoietin, ProMune, promyelocytic leukemia, prophylactic | | Next Definitions: | prophylactic mastectomy, prophylactic oophorectomy, prophylactic surgery, prophylaxis, prospective |
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