[1] Hannover Med Sch, Dept Pediat Hematol & Oncol, D-30625 Hannover, Germany
[2] Univ Ulm, Sect Stem Cell Transplantat, Dept Pediat & Adolescent Med, D-89069 Ulm, Germany
[3] Univ Wurzburg, Childrens Hosp, Pediat Stem Cell Transplantat Program, D-97070 Wurzburg, Germany
[4] St Anna Childrens Hosp, Vienna, Austria
[5] Univ Hosp Erlangen, Childrens & Adolescents Hosp, Sect Oncol Haematol & Cell Therapy, Erlangen, Germany
[6] Univ Childrens Hosp Munster, Dept Paediat Haematol Oncol, Munster, Germany
[7] Univ Heidelberg Hosp, Dept Oncol Haematol Immunol & Pneumonol, Ctr Child & Adolescent Med, Heidelberg, Germany
[8] Univ Hosp Giessen & Marburg, Childrens Hosp Giessen, Dept Paediat Haematol Oncol, Giessen, Germany
[9] Goethe Univ Frankfurt Main, Ctr Child & Adolescent Med 3, Sect Stem Cell Transplantat, Frankurt Main, Germany
[10] Graz Med Univ, Clin Dept Pediat Haematol Oncol, Graz, Austria
[11] Univ Childrens Hosp Tubingen, Dept Gen Pediat Hematol & Oncol, Tubingen, Germany
[12] Univ Hosp Carl Gustav Carus, Div Haematol & Oncol, Dept Childrens & Adolescent Med, Dresden, Germany
[13] Univ Jena, Dept Pediat, Jena Univ Hosp, Jena, Germany
[14] Univ Dusseldorf, Ctr Child & Adolescent Hlth, Dept Pediat Oncol Hematol & Immunol, D-40225 Dusseldorf, Germany