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. 2018 Mar 25;19(3):58–63. doi: 10.1002/acm2.12279

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© 2018 Virginia Commonwealth University. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, Inc. on behalf of American Association of Physicists in Medicine.

This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Directional shift histograms. Directional shifts from (a) pre‐treatment image to 1st mid treatment image sets, and (b) 1st to 2nd mid‐treatment image sets.