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. 2019 Sep 19;18:1533033819877986. doi: 10.1177/1533033819877986

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© The Author(s) 2019

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (http://www.creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — Plots of the ICP-MR-reported beam center shifts against the couch shift digital readout in the X (A) and Y (B) directions. Gantry angles 0° and 180°. ICP-MR indicates ion chamber profiler (MR-safe).