1. Department of Obstetrics and Gynecology, University Hospital Giessen and Marburg, Justus Liebig University, Klinikstrasse 32, 35385 Giessen, Germany
2. Medical Clinic and Policlinic 3, University Hospital Giessen and Marburg, Justus Liebig University, Rodthohl 6, 35385 Giessen, Germany
3. Institute of Medical Psychology and Sociology of the Justus-Liebig University, Giessen, Germany
4. Institute of Music Science, Justus-Liebig-University, Giessen, Germany