RETRACTED ARTICLE: Effect of multivitamin versus multivitamin-mineral supplementation on metabolic profiles and biomarkers of oxidative stress in pregnant women: a double-blind randomized clinical trial

There are many concerns about the integrity of 172 publications by this research group, including this one. Some of the concerns are published 1. Anaesthesia 2020;75:1683–92, see Supplementary data. This paper is A22 2. Account Res 2020;28:149-61. 3. J Clin Epidemiol 2021;131:22-29. Journals and publishers were notified of these concerns in July 2019. 23 publications have an expression of concern. To our knowledge there has been no public response about any of the concerns. We think these publications are unreliable

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**Retracted**, June 18, 2024: _We, the Editor and Publisher of The Journal of Maternal-Fetal & Neonatal Medicine, have retracted the following article:_ _Mohsen Taghizadeh, Mansooreh Samimi, Fariba Kolahdooz, Zohreh Tabassi, Mehri Jamilian & Zatollah Asemi (2015), Effect of multivitamin versus multivitamin-mineral supplementation on metabolic profiles and biomarkers of oxidative stress in pregnant women: a double-blind randomized clinical trial. The Journal of Maternal-Fetal & Neonatal Medicine, 28:11, 1336–1342, DOI: 10.3109/14767058.2014.954241_ _Following publication, significant concerns were raised by a third party [1] about the integrity of the data and the reported findings in the article._ _When approached for an explanation, the authors and their institution have been cooperative in providing some original data and documents. In order to verify the reported findings, the article and the original data provided by the authors were sent for review by an external statistical reviewer._ _Both the journal editorial team and the external statistical reviewer were unable to confirm the integrity of the trial design and the main outcome of the external review was that the article’s conclusions are unreliable. Therefore, as the editorial team no longer has confidence in the reported conclusions the decision has been made to retract the article._ _The authors listed in the publication have been informed. The authors do not agree with the retraction._ _We have been informed in our decision-making by our editorial policies and the COPE guidelines._ _The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as ‘Retracted’._ **Reference** 1. Bolland MJ, Gamble GD, Grey A, et al. Empirically generated reference proportions for baseline p values from rounded summary statistics. Anaesthesia. 2020;75(12):1685–1687. doi: 10.1111/anae.15165.

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