Carlos Simon1, Denny Sakkas2, David K Gardner3, Hilary O D Critchley4. 1. Igenomix, Parc Cientific Universitat de Valencia, Valencia, Spain Department of Obstetrics and Gynecology, University of Valencia, INCLIVA Health Research Institute, Fundación IVI, Valencia, Spain carlos.simon@ivi.es. 2. Boston IVF, Waltham, MA, USA. 3. School of BioSciences, University of Melbourne, Parkville, VIC, Australia. 4. MRC Centre for Reproductive Health, University of Edinburgh, Edinburgh, UK.