1. Human Molecular Genetics Group, IDIBELL, L'Hospitalet de Llobregat, Barcelona, Spain.
2. Animal Care Facility, Research Building, Institut de Recerca Hospital Universitari Vall d'Hebron, Barcelona, Spain.
3. Biomedical Research Unit, Institut de Recerca Hospital Universitari Vall d'Hebron, Barcelona, Spain.
4. Maternal-Fetal Medicine Department, Hospital Clinic, University of Barcelona, Barcelona, Spain.