1. Department of Gynecology and Obstetrics; Klinik am Eichert, ALB FILS Kliniken; Göppingen Germany
2. Department of Obstetrics and Gynecology, Erlangen University Hospital, Comprehensive Cancer Center Erlangen-EMN; Friedrich-Alexander University Erlangen-Nürnberg (FAU); Erlangen Germany
3. Department of Gynecology and Obstetrics; Mainz University Hospital, Johannes Gutenberg University of Mainz; Mainz Germany