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. 2017 Nov 21;17:372. doi: 10.1186/s12888-017-1535-4

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© The Author(s). 2017

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. 1 — Changes in sleep histogram and chin electromyography tonus with treatment of duloxetine. a First PSG for the patient after duloxetine, 60 mg/day, for 7 months. b Second PSG for patient after duloxetine 60 mg/day, for 2.7 years. c Third PSG after discontinuation of duloxetine for 9 days. d Fourth PSG after discontinuation of duloxetine for 37 days. Lines under the x-axis indicate episodes of rapid eye movement sleep. PSG, polysomnography; W, wake; N1–3, non-rapid eye movement sleep 1–3; R, rapid eye movement sleep; TIB, time in bed; TST, total sleep time; SL, sleep latency; WASO: wake after sleep onset; REM: rapid eye movement; SE, sleep efficiency; AHI, apnea-hypopnea index; EMG, electromyography