[1] Italian Grp Adult Hematol Dis GIMEMA, Ctr Data, Rome, Italy
[2] Hlth Outcomes Res Unit, Rome, Italy
[3] Netherlands Canc Inst, Dept Psychosocial Res, Div Psychosocial Res & Epidemiol, Amsterdam, Netherlands
[4] Univ Hosp Besancon, Qual Life Oncol French Natl Platform, Methodol & Qual Life Oncol Unit, INSERM,UMR 1098, Besancon, France