Retraction notice to "Combined coenzyme Q10 and clomiphene citrate for ovulation induction in clomiphene-citrate-resistant polycystic ovary syndrome" RBMO 29/1 (2014) 119-124.

This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/policies/article-withdrawal). This article is being retracted at the request of the Editors. An Expression of Concern was previously published for this article while an investigation was conducted. This retraction notice replaces the earlier Expression of Concern. In response to several reports concerning the above paper, regarding the collection of data, the accuracy of analysis and data presentation, and conclusions presented in the article, RBMO Editors investigated to verify the validity of the issues raised and determine the appropriate status of the paper. The investigation followed Elsevier's policy on publishing ethics, the flowcharts and guidelines provided by COPE, and the ‘REAPPRAISED’ checklist for the evaluation of publication integrity. The corresponding author and their institution have responded ​to the editor's inquiries and are unable to provide the trial data required to resolve the concerns. The authors advised that at the time the research was conducted, local policy required records to be destroyed after 5 years, thus, as the trial data are no longer available, post-publication concerns cannot be further investigated. Note at the time of submission, retention of raw data and data sharing was not a requirement. Additionally, the Editors were made aware that this article had been previously published in the Egyptian Journal of Fertility and Sterility: Khaled R. Zalata, A. A. E. (2013). ‘Combined coenzyme Q10 as an adjuvant for ovulation induction in polycystic ovary syndrome’, The Egyptian Journal of Fertility and Sterility, 17(2), pp. 12-15. doi: 10.21608/egyfs.2013.257474 The previous publication was not referred to in this article. One of the conditions of submission of a paper for publication is that authors declare explicitly that their work is original and has not appeared in a publication elsewhere. Re-use of any data should be appropriately cited. Without the possibility of publishing a correction or explanation, the data presented in the paper remain unreliable and already form part of the published record in the previous article, and therefore, in line with COPE recommendations, the journal Editors agree that retraction is appropriate. RETRACTED: Combined coenzyme Q10 and clomiphene citrate for ovulation induction in clomiphene-citrate-resistant polycystic ovary syndromeReproductive BioMedicine OnlineVol. 29Issue 1PreviewThis article has been retracted: please see Elsevier Policy on Article Withdrawal ( https://www.elsevier.com/about/policies/article-withdrawal ). Full-Text PDF