Editorial Expression of Concern: Arch Gynecol Obstet (2008) 278:33–38 https://doi.org/10.1007/s00404-007-0527-x

The Editor-in-Chief is issuing an editorial Expression of Concern for this article. Concerns have been raised about the reporting of this study. 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. None of the authors has responded to correspondence from the Publisher about this statement.