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To the Editor We wish to retract the article “Effect of Nitroglycerin Ointment on Bone Density and Strength in Postmenopausal Women: A Randomized Trial,”1 published in the February 23, 2011, issue of JAMA.
In a report issued by an investigating committee appointed by Women’s College Hospital, affiliated with the University of Toronto, to investigate, in part, the availability of data relative to this study, the committee concluded, based on objective evidence, that Dr Jamal had falsified and/or fabricated data and used that data for statistical analysis. Dr Jamal was both the first and corresponding author and was responsible for the integrity of the data and the accuracy of the data analysis. None of the other coauthors were involved in the misrepresentation of these data. All of the authors recognize the seriousness of this issue. We regret that the results of this study have been compromised and are committed to correcting the medical literature.
Corresponding Author: Richard Eastell, MD, Department of Oncology and Metabolism, University of Sheffield, Sheffield, South Yorkshire, England (email@example.com).
Published Online: December 28, 2015. doi:10.1001/jama.2015.18431.
Eastell R, Hamilton CJ, Cummings SR. Notice of Retraction: Jamal SA, et al. Effect of Nitroglycerin Ointment on Bone Density and Strength in Postmenopausal Women: A Randomized Trial. JAMA. 2011;305(8):800-807.. JAMA. 2016;315(4):418–419. doi:10.1001/jama.2015.18431