1. Barcelona Center for Maternal–Fetal and Neonatal Medicine Hospital Clínic and Hospital Sant Joan de Déu, IDIBAPS, University of Barcelona Barcelona Spain
2. Center for Biomedical Research on Rare Diseases (CIBER‐ER) Madrid Spain
3. Institut de Recerca Sant Joan de Déu (IR‐SJD) Barcelona Spain
4. Maternal and Child Health Development Network, RETICS Research Institute Carlos III, Spanish Ministry of Economy and Competitiveness Madrid Spain