1. Henri Mondor Hospital; Créteil France
2. French Bone Marrow Donor Registry; St Denis France
3. Italian Bone Marrow Donor Registry; Genova Italy
4. San Martino Hospital; Genova Italy
5. Huriet Hospital; Lille France
6. Bambino Gesù Hospital; Roma Italy
7. Robert Debré Hospital; Paris France
8. G. Gaslini Hospital; Genova Italy
9. Necker Hospital; Paris France
10. Sant'Orsola-Malpighi Hospital; Bologna Italy
11. Purpan Hospital; Toulouse France
12. La Sapienza Hospital; Roma Italy
13. Hotel Dieu Hospital; Nantes France
14. Federico II University; Naples Italy
15. Haut Levêque Hospital; Pessac France
16. St Louis Hospital; Paris France
17. King's College Hospital; London United Kingdom
18. Basel University Hospital; Basel Switzerland