Retraction to: Arch Gynecol Obstet (2016) 294:273–278 https://doi.org/10.1007/s00404-015-3990-9

The Editor-in-Chief is retracting this article. After publication, serious concerns were raised about the data reported. The authors have not satisfactorily responded to concerns about the data presented or provided the original data for examination. The Editor-in-Chief therefore no longer has confidence in the results and conclusions presented. Mohamed Rezk does not agree with this retraction. Awni Gamal has not responded to correspondence from the Editor-in-Chief or the Publisher about this retraction.