1. Hematology and Bone Marrow Transplantation UnitUniversity of PalermoPalermo, Italy
2. Institute for Human GeneticsUniversity of GreifswaldGreifswald, Germany
3. Department of Biochemisry and Molecular BiologyUniversity of FerraraFerrara, Italy
4. Laboratory of HematologyUniversity Hospital Saint-EloiMontpellier, France
5. Department of PediatricsCentral HospitalBremen, Germany
6. Center for Hemophilia and ThrombosisUniversity Hospital Aarhus/SkejbyAarhus, Denmark