'Sage said both experts had “identified fundamental problems with the study design and methodology, unjustified or incorrect factual assumptions, material errors in the authors’ analysis of the data, and misleading presentations of the data that, in their opinions, demonstrate a lack of scientific rigor and invalidate the authors’ conclusions in whole or in part.”

https://www.nytimes.com/2024/02/09/health/abortion-pills-study-retraction.html