1. Department of Gynecology, Ketteler-Hospital Offenbach, 63071 Offenbach, Germany
2. Department of Gynecology, University Hospital Bonn, 53127 Bonn, Germany
3. Department of Obstetrics and Gynecology, Faculty of Medicine and University Hospital Cologne, University of Cologne, 50937 Cologne, Germany
4. Institute of Clinical Chemistry and Clinical Pharmacology, University Hospital Bonn, 53127 Bonn, Germany
5. Munich Biomarker Research Center, Institute of Laboratory Medicine, German Heart Center, Technical University Munich, 80636 Munich, Germany
6. Department of Computer Science, Ostfalia University, 38302 Wolfenbüttel, Germany
7. Helmholtz Centre for Infection Research, Biostatistics, 38124 Braunschweig, Germany
8. Center for the Evaluation of Biomarkers, 81679 Munich, Germany