[1] Univ Freiburg, Med Ctr, Dept Hematol Oncol & Stem Cell Transplantat, Freiburg, Germany
[2] Univ Freiburg, Fac Biol, Freiburg, Germany
[3] Reg Inst Oncol, Iasi, Romania
[4] Washington Univ, Sch Med, Dept Radiat Oncol, Div Canc Biol, St Louis, MO USA
[5] Univ Med Ctr Hamburg Eppendorf, Dept Hematol Oncol & Stem Cell Transplantat, Hamburg, Germany