1. Department of Internal Medicine II, University of Kiel, Kiel, Germany;
2. Department of Haematology, Ospedale San Martino, Genova, Italy;
3. Department of Haematology, Hôpital Saint Antoine, Paris, France
4. Department of Haematology, Ospedale V. Cervello, Palermo, Italy;
5. Rikshospitalet, Oslo, Norway
6. Department of Haematology, Glasgow Royal Infirmary, Glasgow, U.K.
7. Istituto Scienze Mediche, University of Milano, Milano, Italy
8. BMT Unit, K. Dluski Hospital and Institute of Immunology and Experimental Therapy, Wroclaw, Poland
9. Postgraduate School of Haematology, Hospital Clinic, Barcelona, Spain
10. Servicio de Hematologia, Valencia, Spain
11. Department of Medicine–Haematology/Oncology, University of Freiburg, Freiburg, Germany
12. Department of Haematology, Hospital Santa Creu i Sant Pau, Barcelona, Spain
13. Kantonsspital Basel, Basel, Switzerland