Editorial Expression of Concern: The efficacy of Implanon for the treatment of chronic pelvic pain associated with pelvic congestion: 1-year randomized controlled pilot study

Editorial Expression of Concern : Arch Gynecol Obstet (2009) 280:437–443 https://doi.org/10.1007/s00404-009-0951-1

The Editor-in-Chief is issuing an editorial Expression of Concern for this article. Concerns have been raised about similarities between the baseline data and those reported in [1]. The authors have not provided 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.