1 Ranjit Manchanda: Barts Cancer Institute, Queen Mary University of London, Charterhouse Square, London, UK; Department of Gynaecological Oncology, St Bartholomew's Hospital, London, UK; Gynaecological Cancer Research Centre, Department of Women's Cancer, Institute for Women's Health, University College London, London, UK.
2 Rosa Legood: Department of Health Services Research and Policy, London School of Hygiene & Tropical Medicine, London, UK.