Expression of concern: Changes in Brain-Derived Neurotrophic Factor Expression Influence Sleep–Wake Activity and Homeostatic Regulation of Rapid Eye Movement Sleep

In 2018, SLEEP published the article “Changes in Brain-Derived Neurotrophic Factor Expression Influence Sleep–Wake Activity and Homeostatic Regulation of Rapid Eye Movement Sleep,” by Jennifer M. Garner, BS, Jonathan Chambers, BS, Abigail K Barnes, BA, and Subimal Datta, PhD: https://doi.org/10.1093/sleep/zsx194. In August 2020, the editors received credible notice of attribution problems with the source of the data in the article. We alert our readers that, pending the outcome of a full institutional investigation, concerns have been raised about this article.