Expression of concern: “Use of contraceptives in cats with ovarian and uterine pathology”

This note concerns the article “Use of contraceptives in cats with ovarian and uterine pathology” by O.  Chekan, A.  Rokochyi, O.  Kysterna, Yu.  Musiienko, and I.  Levchenko published in Scientific Horizons, 2024, volume 27, No. 2, pages 9-18, DOI: https:// doi.org/10.48077/scihor2.2024.09. After publication, the journal received a detailed critique raising concerns about the correctness of some citations, the adequacy of the methodological description and the strength of the conclusions regarding the use of megestrol acetate in cats. In accordance with COPE guidelines, the editorial board has initiated an investigation, including a request for clarification from the authors and an independent expert assessment. Until this process is completed, readers are advised to interpret the findings of the article with caution. A further editorial decision (correction, retraction or no further action) will be communicated in due course.