1. University of Oxford, Nuffield Department of Obstetrics and Gynaecology, John Radcliffe Hospital, Oxford OX3 9DU, UK
2. Reprogenetics UK (CooperGenomics), a Cooper Surgical Company, Institute for Reproductive Sciences, Oxford Business Park North, Oxford OX4 2HW, UK
3. NYU Langone Medical Center, 333 E 38th St, New York, NY 10016, USA
4. Reprogenetics (CooperGenomics), a Cooper Surgical Company, 3 Regent Street, Livingston, NJ 07039, USA