1. Second Surgical Department, Ludwig Boltzmann Institute for Surgical Laparoscopy, Academic Teaching Hospital, Linz General Hospital, 4021 Linz, Austria
2. Faculty of Medicine, Johannes Kepler University, 4040 Linz, Austria
3. Department of Obstetrics and Gynecology, Women’s General Hospital, 4020 Linz, Austria
4. Department of Gynecology, Erlangen University Hospital, 91054 Erlangen, Germany
5. Department of Applied Systems Research and Statistics, Johannes Kepler University, 4040 Linz, Austria