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in radiation therapy, voltage between 500 kilovolts and 1 megavolt, as contrasted with orthovoltage and megavoltage.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
In radiation therapy, a descriptor for high-energy radiation exceeding 1000 V.
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