1. Institute of Reproductive and Developmental Biology (T.K., M.J., L.F., M.T., F.F.-Z., G.P., H.M., J.J.B.), London W12 0NN, United Kingdom;
2. Department of Obstetrics and Gynecology (O.I.), Saitama Medical School, Moroyama, Saitama 350-0495, Japan
3. Department of Obstetrics and Gynaecology (J.M.H.), Imperial College London, St. Mary’s Hospital, London W2 1PG, United Kingdom;
4. Cancer Research-UK Labs and Section of Cancer Cell Biology (E.W.-F.L.), Department of Oncology, Imperial College London, Hammersmith Hospital, London W12 0NN, United Kingdom;