Medical University of Vienna - Division of Haematology and Blood Coagulation, AOP Orphan Pharmaceuticals AG, Medical University of Plovdiv, University Hospital in Krakow, Multiprofile Hospital for Active Treatment "Sveta Marina", Kaposi MorCounty Teaching Hospital, Samara Kalinin Regional Clinical Hospital, University Hospital Hradec Kralove, University of Debrecen - Faculty of Medicine, Cherkasy Regional Oncology Centre, Multiprofile Hospital for Active Treatment - HristoBotev, University Hospital Brno, Yaroslavl Regional Clinical Hospital, AOP Orphan Pharmaceuticals AG, AOP Orphan Pharmaceuticals AG, University of Copenhagen, Medical University of Vienna, University of Paris and Independent