Erratum to: Arch Gynecol Obstet (2008) 278:315–318 DOI 10.1007/s00404-008-0588-5

Unfortunately, first names and last names of the authors were interchanged in the online and printed version of this article. Instead of “Ghaemmaghami Fatemeh, Behroozi Shohreh, Mousavi Azamolsadat, Ashrafgangooei Tahereh, Modares Gilani Mitra, Behtash Nadereh, Ghanbari Zinat”, they should read as “Fatemeh Ghaemmaghami, Shohreh Behroozi, Azamolsadat Mousavi, Tahereh Ashrafgangooei, Mitra Modares Gilani, Nadereh Behtash, Zinat Ghanbari”.