1. Department of Gynecology and Obstetrics, University Hospital Essen, 45147 Essen, Germany
2. German Cancer Consortium (DKTK), Dresden and German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
3. Department of Gynecology and Obstetrics, Medical Faculty and University Hospital Carl Gustav Carus, Technische Universität Dresden, 01307 Dresden, Germany
4. National Center for Tumor Diseases (NCT), Partner Site Dresden, 69120 Heidelberg, Germany
5. QIAGEN, 40724 Hilden, Germany