1. Groupe d’investigateurs national des Etudes des Cancers Ovariens (GINECO), Paris, France
2. Gustave Roussy Cancer Center and Institut National de la Santé et de la Recherche Medicale Oncostat, Villejuif, France
3. Department of Biostatistics, University of Versailles St Quentin, Institut Curie, Saint-Cloud, France
4. Scottish Gynaecological Cancer Trials Group (SGCTG), Cancer Research United Kingdom Clinical Trial Unit, Institute of Cancer Sciences, University of Glasgow, Glasgow, United Kingdom
5. Multicenter Italian Trials in Ovarian Cancer and Gynecologic Malignancies (MITO), Clinical Trials Unit, Istituto Nazionale Tumori– Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS), Fondazione G. Pascale, Napoli, Italia
6. Medical Research Counsel Clinical Trials Unit, University College London, London, United Kingdom
7. Japanese Gynecologic Oncology Group (JGOG), Jikei University School of Medicine, Tokyo, Japan
8. Canadian Cancer Trials Group (CCTG), University of British Columbia, Vancouver, British Columbia, Canada
9. Nordic Society of Gynaecological Oncology, Norwegian Radium Hospital, Oslo, Norway
10. European Organisation for Research and Treatment of Cancer, Radboud University Medical Center, Nijmegen, the Netherlands
11. Hellenic Cooperative Oncology Group, General Oncology Hospital of Kifissia, Nea Kifissia, Greece
12. Gynecologic Oncology Group (GOG), Roswell Park Comprehensive Cancer Center, Buffalo, New York
13. Department of Medical Oncology, Erasmus Medical Center Cancer Institute, Rotterdam, the Netherlands
14. University of Milan Bicocca, San Gerardo Hospital, Monza, Italy
15. University of Groningen, University Medical Center Groningen, Groningen, the Netherlands
16. Association de Recherche sur les Cancers dont Gynécologiques–GINECO, Université Paris Descartes, Assistance Publique–Hôpitaux de Paris, Paris, France
17. MITO, Istituto Nazionale Tumori di Napoli IRCCS Fondazione G Pascale, Napoli, Italy
18. JGOG, Foundation for Biomedical Research and Innovation at Kobe, Translational Research Center for Medical Innovation, Kobe, Japan
19. CCTG, London Health Sciences Centre, London, Ontario, Canada
20. Gustave Roussy Cancer Center, Villejuif, France
21. SGCTG, Beatson West of Scotland Cancer Centre, NHS (National Health Service) Greater Glasgow and Clyde, Glasgow, United Kingdom