1. Department of Gynaecology, Obstetrics and Neonatology First Faculty of Medicine Charles University and General University Hospital in Prague, Central and Eastern European Gynecologic Oncology Group (CEEGOG) Prague Czech Republic
2. Australia New Zealand Gynaecological Oncology Group (ANZGOG) Camperdown Australia
3. Association de Recherche dans les CAncers Gynécologiques–Groupe d'Investigateurs National pour l'Etude des Cancers de l'Ovaire et du sein (ARCAGY‐GINECO) Paris France
4. Department of Biostatistics and Bioinformatics Roswell Park Comprehensive Cancer Center, GOG Foundation Buffalo New York USA
5. Department of Gynecology with Center for Oncological Surgery Charité ‐ Universitätsmedizin Berlin, Nord‐Ostdeutsche Gesellschaft für Gynäkologische Onkologie (NOGGO e.V.) Berlin Germany
6. Department for Gynecology and Obstetrics, Medical University of Innsbruck Arbeitsgemeinschaft Gynäkologische Onkologie Österreich (AGO Austria) Innsbruck Austria