1. University Clinic for Gynaecology and Obstetrics, RWTH Aachen , Aachen, Germany
2. Department for Medical Education, University Clinic Bonn , Bonn, Germany
3. Department for Psychiatry, Psychotherapy and Psychosomatics, RWTH Aachen , Aachen, Germany
4. Institute of Neuroscience and Medicine, Research Center Jülich , Jülich, Germany
5. University Clinic for Gynaecology, Obstetrics and Reproductive Medicine, Otto-von-Guericke University , Magdeburg, Germany
6. University Clinic for Gynaecology and Obstetrics, Brandenburg Medical School , Brandenburg, Germany