The PLOS One Editors issue this Expression of Concern because this article [1] was identified as one of a series of submissions for which we have concerns about the peer review process. Readers are advised to interpret the article [1] with caution.
The Editors have no evidence of any author involvement in the peer review concerns.
Additionally, the article cited as Reference 58 was retracted after [1] was published, and the article cited as Reference 34 was retracted before [1] was published.
Reference
Citation: The PLOS One Editors (2025) Expression of Concern: Contribution of labor related gene subtype classification on heterogeneity of polycystic ovary syndrome. PLoS One 20(12): e0339143. https://doi.org/10.1371/journal.pone.0339143
Published: December 18, 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.