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. 2021 Nov 23;11:22767. doi: 10.1038/s41598-021-01358-4

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© The Author(s) 2021

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Physiological response for a 28 y/o female with BMI of 21.0. (a) Dose of phenylephrine. (b) Heart rate from the Cardioscreen, Philips and Stowood reference devices. (c) $S p O_{2}$ from the Stowood device, (d) respiratory rate from the nasal cannula, (e) BP from the cuff (dotted lines) and processed by our proposed algorithms (solid line), (f1) beat-by-beat PAT and filtered PAT with respiratory component removed, (f2) beat-by-beat PAT and processed PAT to compare to cuff values, (g) beat-by-beat PEP time series and processed PEP, and (h) PTT time series.