1. Maternal-Fetal Medicine Department, Institut Clínic de Ginecologia, Obstetrícia i Neonatologia (ICGON); 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), Hospital Clínic; Universitat de Barcelona; Barcelona Spain