1. Department of Obstetrics and Gynecology Clinica Universidad de Navarra Pamplona Spain
2. Department of Obstetrics and Gynecology Hospital Universitario Sureste Arganda del Rey Spain
3. Department of Obstetrics and Gynecology Hospital Universitario Virgen de Valme Sevilla Spain
4. Department of Obstetrics and Gynecology Hospital Universitario Materno‐Infantil Badajoz Spain
5. Centro Integrato di Procreazione Medicalmente Assistita (PMA) e Diagnostica Ostetrico‐Ginecologica Azienda Ospedaliero Universitaria‐Policlinico Duilio Casula Monserrato, University of Cagliari Cagliari Italy