Health A-Z

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Although CT scanning requires a slightly higher amount of X-ray exposure than conventional X-rays, it gives images that are much clearer.

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From Health A-Z, Harvard Health Publications. Copyright 2007 by the President and Fellows of Harvard College. All rights reserved. Written permission is required to reproduce, in any manner, in whole or in part, the material contained herein. To make a reprint request, contact Harvard Health Publications. Used with permission of StayWell.

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