1. Département d'Hématologie, Centre Hospitalier Lyon Sud, Pierre-Benite Cedex, France;
2. Centre Henri Becquerel, Rouen, France;
3. University Hospital Herlev, Herlev, Denmark;
4. Vejle Hospital, Vejle, Denmark;
5. Odense University Hospital, Odense, Denmark;
6. University of Amsterdam, Amsterdam, the Netherlands;
7. University of Iowa, Iowa City;
8. Klinika Hematologii, Bialystok, Poland;
9. Klinika Hematologii i Transplantacji Szpiku, Katowice, Poland;
10. Klinika Hematologii Akademii Medycznej, Gdansk, Poland;
11. Maria Sklodowska-Curie Memorial Institute and Cancer Centre, Warsaw, Poland;
12. Genmab, Copenhagen, Denmark;
13. Medical University of Lodz, Lodz, Poland