[1] Univ Hosp Erlangen, Dept Internal Med, Hematol Oncol, Erlangen, Germany
[2] Univ Hosp Erlangen, Dept Transfus Med & Hemostaseol, Erlangen, Germany
[3] Univ Hosp Erlangen, Ctr Clin Studies CCS, Erlangen, Germany
[4] Univ Hosp Regensburg, Dept Hematol & Med Oncol, Regensburg, Germany
[5] City Hosp Kiel, Med Dept 2, Kiel, Germany
[6] Univ Hosp Essen, Dept Bone Marrow Transplantat, Essen, Germany
[7] Univ Hosp Erlangen, Inst Clin & Mol Virol, Erlangen, Germany
[8] Univ Erlangen Nurnberg, Nikolaus Fiebiger Ctr, Dept Biol, Chair Genet, Erlangen, Germany