1. Department of Obstetrics and Gynaecology, University Hospital Tuebingen
2. Mammography Screening Center Tuebingen
3. Private Practice at Clinic Dr. Hancken, Stade
4. Vivantes – Centre of Breast Diseases Berlin
5. Department of Obstetrics and Gynaecology, Asklepios Clinic, Langen
6. Hermann-Joseph-Hospital, Erkelenz
7. Senological Diagnostic Unit, University Hospital Marburg
8. Department of Obstetrics and Gynecology, Franziskus Hospital, Bielefeld
9. Institute of Pathology, University Hospital Heidelberg