Sage has retracted 45 papers from one of its journals for questionable authorship and peer review.
The publisher began an investigation into Clinical Hemorheology and Microcirculation last year to address citation concerns, a Sage spokesperson told Retraction Watch. The journal was one of 20 titles that lost their impact factors in Clarivate’s 2025 Journal Citation Reports for excessive self-citation and citation stacking.
Sage retracted the articles due to “concerns around the peer review process underlying these articles and author contributions to these articles, as well as the integrity of the research process,” according to the retraction notice, published November 23. The publisher detected “one or more” issues in each of the papers, including patterns of citation manipulation, indicators of third-party involvement and problems with peer review.









