The PLOS One Editors retract this article [1] because it was identified as one of a series of submissions for which we have concerns about potential manipulation of the publication process, peer review integrity, and authorship. These concerns call into question the validity and provenance of the reported results. We regret that the issues were not identified prior to the article’s publication.
DT and BO did not agree with the retraction. PZ, JX and JL either did not respond directly or could not be reached.
Reference
Citation: The PLOS One Editors (2025) Retraction: Intelligence level evaluation and influencing factors analysis of equipment manufacturing industry in the Yangtze River Delta. PLoS One 20(10): e0334991. https://doi.org/10.1371/journal.pone.0334991
Published: October 23, 2025
Copyright: © 2025 The PLOS One Editors. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.