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. 2023 Jun 15;16:17562864231180711. doi: 10.1177/17562864231180711

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© The Author(s), 2023

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access page (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 1. — Longer sympathetic skin response (SSR) latencies and smaller cross-sectional area (CSA) of the vagus nerve are noted in post-COVID syndrome (PCS) patients compared with healthy controls and non-post-COVID patients (NONPCS): (a) SSR palmar latencies, (b) SSR plantar latencies, (c) CSA of the right vagus nerve, and (d) CSA of the left vagus nerve.

One asterisk (*) indicates statistically significant differences (p < 0.05) and two asterisks (**) indicate statistically significant differences (p < 0.01).