Retraction: D. M. R. Dakhly, Y. A. Bayoumi, M. Sharkawy, S. H. Gad Allah, M. A. Hassan, H. M. Gouda, A. T. Hashem, D. L. Hatem, M. F. Ahmed, W. El-Khayat. "Intralipid supplementation in women with recurrent spontaneous abortion and elevated levels of natural killer cells." International Journal of Gynecology & Obstetrics 135, no. 3 (2016): 324-327. https://doi.org/10.1016/j.ijgo.2016.06.026. The above article, published online on 30 August 2016 in Wiley Online Library (wileyonlinelibrary.com) has been retracted by agreement between the journal's Editor-in-Chief, Michael Geary, International Federation of Gynecology and Obstetrics and John Wiley & Sons Ltd. The retraction has been agreed following an investigation based on concerns raised by a third party. Several discrepancies were found between the information provided during the trial registration and the published article including, the study dates, participant eligibility criteria and the study's focus on natural killer cells. Furthermore, the definition of clinical pregnancy differs between the article and trial registration. Errors were also uncovered in Table 2 of the article; the number of spontaneous abortions and ongoing pregnancies do not add up to the total number of clinical pregnancies stated. Additionally, the calculation specified to define implantation rate is not consistent with the values reported in Table 2. The authors were unable to provide the original data upon request or provide an explanation for the discrepancies. Given the nature and extent of the discrepancies, the editors have lost confidence in the data and conclusions presented. The author, Waleed El-Khayat, disagrees with the retraction; the other authors were not available for comment.
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