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. 2019 Dec 16;19:501. doi: 10.1186/s12884-019-2660-5

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© The Author(s). 2019

Open Access This 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 — illustrates repeated coincidence alarms, indicated by the question marks with a Philips Avalon monitor. This CTG monitor is formatted for the French language. With English formatting, the caption “RCF1, Pouls” beside the question mark icons would read “FHR1, Pulse”. The faint line is the presumed maternal heart rate and the dark line is the presumed fetal heart rate. Consent has been obtained from the patient to publish this image