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. 2024 Jun 19;15:1401982. doi: 10.3389/fneur.2024.1401982

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Copyright © 2024 Hashimoto, Sugiyama, Kaneko, Kinoshita, Yamamoto, Ishida, Umezaki and Hirano.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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Changes in mean areas of the contrast dye in the pharynx (A) and esophagus (B) are indicated during the pharyngeal and esophageal stages of swallowing for all groups, respectively. The time course of the pharyngeal transit duration for each group is shown in panel (C). Scatter plots, and relationships between the pharyngeal area and pharyngeal transit duration are represented in panel (D). The formula of the linear regression line is given in panel (D). Different symbols are used to indicate each group in panels (A–C). Closed circle, bilateral section group; closed triangle, unilateral section group; open square, sham-operated group; cross, control group.