Erratum to: Arch Gynecol Obstet DOI 10.1007/s00404-009-1122-0

Unfortunately, one of the author names in the author group was spelled wrongly in the online version of this article. The correct name should be Jessica Falleti instead of Jessica Faletti. The whole author group should be read as Chiara Mignogna, Attilio Di Spiezio Sardo, Marialuigia Spinelli, Claudia Sassone, Mariarosaria Cervasio, Maurizio Guida, Jessica Falleti, Carmine Nappi.