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. 2017 Feb 8;8:55. doi: 10.3389/fphys.2017.00055

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Copyright © 2017 Liu, Huang, Wu, Xu, Sun, Zhang, Chen and Gao.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Trial flow diagram. AMS, acute mountain sickness; qRT-PCR, quantitative reverse-transcription polymerase chain reaction; LLS, Lake Louise Scoring System; BP, blood pressure; HR, heart rate; SpO2, oxygen saturation.