1. Maternal-Fetal Medicine Department, ICGON, Hospital Clínic; Universitat de Barcelona; Fetal and Perinatal Medicine Research Group, Institut d'Investigacions Biomediques August Pi i Sunyer (IDIBAPS); and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER); Barcelona Spain
2. Fondazione Ca' Granda, Ospedale Maggiore Policlinico, Dipartimento Ostetricia e Ginecologia; Univerisità degli Studi di Milano; Milan Italy
3. Obstetrics, Gynecology and Reproductive Medicine Department; Institut Universitari Dexeus; Barcelona Spain