1. From the Centre Frédéric Joliot, Rouen, France; Ziekenhuisnetwerk Antwerpen and Campus Middelheim, Hemato-oncology, Antwerpen; University Hospital Antwerp, Edegem; University Hospital Gasthuisberg, Leuven, Belgium; Schwerpunktpraxis Haematology/Oncology (MediProjekt), Hannover, Germany; Petz Aladár Megyei Oktato Korhaz, Gyor, Hungary; Amgen (Europe) GmbH, Zug, Switzerland; and Amgen Ltd, Cambridge, United Kingdom