1. Fetal i+D Fetal Medicine Research Center, BCNatal - Barcelona, Center for Maternal-Fetal and Neonatal Medicine, Hospital Clínic and Hospital Sant Joan de Deu, Institut Clínic de Ginecologia, Obstetricia i Neonatologia, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Universitat de Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER-ER); Barcelona Spain
2. Transmural Biotech S. L.; Barcelona Spain
3. Laboratory of Biostatistics & Epidemiology (Universitat Autonoma de Barcelona); Medical Statistics Core Facility, IDIBAPS, (Hospital Clinic); Barcelona Spain
4. Skåne University Hospital, Malmö; Lund University; Lund Sweden