Editorial Expression of Concern: Arch Gynecol Obstet (2017) 296:1097–1102 https://doi.org/10.1007/s00404-017-4550-2


The Editor-in-Chief has issued an editorial Expression of Concern for this article. Concerns have been raised about patterns in the data presented in Tables 1, 2 and 3. The authors have not provided the raw data in order to allay these concerns. Readers are therefore advised to interpret the results and conclusions with caution. Mohamed Rezk does not agree with this statement. Zein Omar has not responded to correspondence from the Publisher about this statement.