[1] Kantonsspital, Div Hematol, Dept Internal Med, CH-4031 Basel, Switzerland
[2] Kantonsspital, Res Dept, CH-4031 Basel, Switzerland
[3] Res Inst Management Hlth Care, FMIG, St Gallen, Switzerland
[4] Hosp Clin Barcelona, EBMT Secretariat, Barcelona, Spain