1. Clinic of Anesthesiology, Ludwig-Maximilians University, Munich, Germany
2. Clinic of Gynecology and Obstetrics, Ludwig-Maximilians University, Munich, Germany
3. Institute of Histology and Microscopic Anatomy, Ludwig-Maximilians University, Munich, Germany
4. Walter-Brendel-Centre of Experimental Medicine, Ludwig-Maximilians University, Munich, Germany