Editorial Expression of Concern: Archives of Gynecology and Obstetrics (2018) 297:521–528 https://doi.org/10.1007/s00404-017-4604-5


The Editor-in-Chief is issuing an editorial Expression of Concern for this article that reports the outcome of a randomized controlled trial. Concerns have been raised about the reliability of the P values for numerous variables reported in this article. The authors have not been able to provide the original data for examination. Readers are therefore advised to interpret the results and conclusions with caution. Amr El-Noury, Hesham Al‐Inany and Sameh Salama disagree with this statement. Adel Mohamed Nada, Mamdouh Bibars, Tamer Taha, Fatma Hassan and Eman Zein have not responded to correspondence from the Publisher about this statement.