1. Saint-Pierre University Hospital, Brussels, Belgium
2. Port-Royal Maternity Hospital, Paris, France
3. University Hospital, Toulouse, France
4. Erasmus MC–Sophia Children’s Hospital, Rotterdam, Netherlands
5. University Hospital, Modena, Italy
6. University Hospital, Geneva, Switzerland
7. University Hospital, Strasbourg, France
8. Karolinska Institute, Stockholm, Sweden
9. Drammen Hospital, Norway
10. 12 de Octubre University Hospital, Madrid, Spain
11. Jeanne de Flandre University Hospital, Lille, France
12. University Hospital, Tuebingen, Germany
13. University Hospital, Brest, France
14. University of the Basque Country, Bilbao, Spain
15. Karolinska Institute, Karolinska University Hospital, Stockholm, Sweden