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. 2020 Nov 9;8(11):e23123. doi: 10.2196/23123

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©Carlos O'Connor-Reina, Jose Maria Ignacio Garcia, Elisa Rodriguez Ruiz, Maria Del Carmen Morillo Dominguez, Victoria Ignacio Barrios, Peter Baptista Jardin, Juan Carlos Casado Morente, Maria Teresa Garcia Iriarte, Guillermo Plaza. Originally published in JMIR mHealth and uHealth (http://mhealth.jmir.org), 09.11.2020.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in JMIR mHealth and uHealth, is properly cited. The complete bibliographic information, a link to the original publication on http://mhealth.jmir.org/, as well as this copyright and license information must be included.

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Iowa Oral Performance Instrument (IOPI) tongue strength (kPa) at baseline and after 3 months in patients with severe obstructive sleep apnea. The intragroup comparison is shown from before to after the study. AGG: AirwayGym group; CG: control group.