1. Fetal Medicine Research Center, BCNatal – Barcelona Center for Maternal–Fetal and Neonatal Medicine, Hospital Clínic and Hospital Sant Joan de Déu, Institut Clínic de Ginecologia, Obstetricia i Neonatologia, IDIBAPSUniversity of Barcelona, and Centre for Biomedical Research on Rare Diseases (CIBER‐ER) Barcelona Spain
2. Department of PathologyHospital Sant Joan de Déu Barcelona Spain
3. Department of Pathology, Hospital Clinic‐IDIBAPSUniversity of Barcelona Barcelona Spain