1. Department of Obstetrics and Gynecology, University Hospital, LMU Munich, Munich, Germany.
2. Amedes MVZ for Gynecology and Pathology Munich GmbH, Munich, Germany.
3. Dysplasie Einheit abts+partner, Kiel, Germany.
4. Department of Obstetrics and Gynaecology, Hannover Medical School, Hannover, Germany.
5. Department for Gynecology, Charité-Universitaetsmedizin Berlin, Campus Benjamin Franklin, Berlin, Germany.
6. Institute of Pathology, University Hospital Salzburg, Paracelsus Medical University, Salzburg, Austria.
7. Department of Medical Statistics, University Medical Center Goettingen, Goettingen, Germany.