1. Department of Obstetrics and Gynecology, Women’s General Hospital, Krankenhausstraße 26–30, 4021 Linz, Austria
2. Department of Gynecology, Erlangen University Hospital, Universitätsstraße 21–23, 91054 Erlangen, Germany
3. Faculty of Medicine, Johannes Kepler Univerity, Altenberger Straße 69, 4040 Linz, Austria
4. Department of Applied Systems Research and Statistics, Johannes Kepler University, Altenberger Straße 69, 4040 Linz, Austria
5. Ludwig Boltzmann Institute for Operative Laparoscopy, Second Surgical Department, Linz General Hospital, Krankenhausstraße 9, 4021 Linz, Austria
6. Department of Obstetrics and Gynecology, Cantonal Hospital Uri, Spitalstraße 1, 6460 Altdorf, Switzerland