1. Public Health Agency of Barcelona; Barcelona Catalonia Spain
2. Epidemiology and Public Health Biomedical Research Consortium (CIBERESP); Spain
3. Prenatal Diagnosis Unit, Maternal-Fetal Medicine Department; Hospital Clinic Barcelona; Barcelona Catalonia Spain
4. Maternal-Fetal Medicine Department; Hospital Vall d'Hebron; Barcelona Catalonia Spain
5. Adknoma Genetics Center; Barcelona Catalonia Spain