1. BCNatal Fetal Medicine Research Center (Hospital Clínic and Hospital Sant Joan de Déu) University of Barcelona Barcelona Spain
2. Institut d'Investigacions Biomediques August Pi i Sunyer Barcelona Spain
3. Maternal and Child Health and Development Network Carlos III Health Institute Barcelona Spain
4. Fetal Medicine University Hospital La Paz Madrid Spain
5. Obstetrics and Gynecology, Hospital de la Santa Creu i Sant Pau Barcelona Spain
6. Maternal‐Fetal Medicine Aragón Health Research Institute Aragón Spain