1. Department of Gynaecology, Hammersmith Hospital, Imperial College NHS Trust, London, UK
2. Department of Surgery and Cancer, Imperial College London, London, UK
3. Department of Politics, Philosophy and Religion, Lancaster University, Lancaster, UK
4. School of Law and Social Justice, University of Liverpool, Liverpool, UK
5. Department of Reproductive Medicine, Chelsea and Westminster Hospital, London, UK
6. Lister Fertility Clinic, The Lister Hospital, Chelsea Bridge Road, London, UK
7. Reproductive Medicine Unit, University College London Hospital, London, UK
8. Department of Oncology and Metabolism, The University of Sheffield, Sheffield, UK