Abstract
In the originally published version of this article, the affiliation for Giordana Pilone was incorrectly listed as:
Department of Obstetrics and Gynecology, Vivantes Auguste-Viktoria-Klinikum, Berlin, Germany.
The correct affiliation, which accurately reflects the author’s affiliation at the time the research was conducted, is:
Charité – Universitätsmedizin Berlin, Charité Campus Mitte, Berlin, Germany.
This has been corrected in the online version of the article.