1. Faculty of Medicine Clínica Universitaria de Navarra Pamplona Spain
2. Department of Obstetrics and Gynecology Hospital Universitario y Politécnico La Fe Valencia Spain
3. Department of Obstetrics and Gynecology Hospital Universitario de Torrejón Madrid Spain
4. Centro Integrato di Procreazione Medicalmente Assistita (PMA) e Diagnostica Ostetrico‐Ginecologica Azienda Ospedaliero Universitaria – Policlinico Duilio Casula, Monserrato, University of Cagliari Cagliari Italy
5. Department of Obstetrics and Gynecology Clínica Universidad de Navarra Pamplona Spain