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. 2016 May 4;20:120. doi: 10.1186/s13054-016-1305-6

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© Alshamsi et al. 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 4 — Pneumonia outcome. Data from 12 trials (n = 1471 patients) were included, analyzed using the random effects model. The risk of pneumonia was similar in both groups. PPI proton pump inhibitor, H2RA histamine-2-receptor antagonist. IV Inverse Variance