Expression of Concern. Transcription Factor 7-Like 2 Regulates β-Cell Survival and Function in Human Pancreatic Islets. Diabetes 2008;57:645–653. DOI: 10.2337/db07-0847; and erratum. Diabetes 2014;63:3974. DOI: 10.2337/db14-er11

On the basis of the recommendation of the American Diabetes Association’s Panel on Ethical Scientific Programs (ESP), the American Diabetes Association, the publisher of Diabetes, is issuing this expression of concern to alert readers to questions about the reliability of the data in the above-cited article and erratum. After readers contacted the journal about potentially duplicated images in the article, the ESP reviewed the following...