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. 2018 Jun 5;9:694. doi: 10.3389/fphys.2018.00694

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Copyright © 2018 Docio, Olea, Prieto-LLoret, Gallego-Martin, Obeso, Gomez-Niño and Rocher.

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) and the copyright owner 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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Catecholamine outflow from control and CIH guinea pig adrenal medulla. Time course of endogenous epinephrine (E; left) and norepinephrine (NE; right) outflow from control (A) and CIH (B) guinea pig AM in response to basal (21% O₂) or hypoxia (2% O₂) conditions, expressed as pmol/AM. Data are mean ± SEM (n = 4–6); One-way ANOVA with Tukey’s multiple comparison test.