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. 2017 Sep 14;23(34):6350–6356. doi: 10.3748/wjg.v23.i34.6350

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©The Author(s) 2017. Published by Baishideng Publishing Group Inc. All rights reserved.

This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial.

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Perioperative potential of hydrogen (pH) in the stomach of the patients. Change of potential of hydrogen (pH) in the remnant stomach was recorded at 8:00 am on the day before surgery as well as 1-5 d after surgery. During the postoperative period, all stomach pH values of group U patients were below 7.00. Conversely, all stomach pH values of group B patients were higher than 7.00.