[1] Clin Hematol Oncol, BMT Unit, Idar Oberstein, Germany
[2] Clin Hematol Oncol, BMT Unit, Nurnberg, Germany
[3] Univ Hosp Munster, Clin Hematol Oncol, Munster, Germany
[4] Univ Hosp Dresden, Dept Hematol Oncol, Dresden, Germany
[5] Free Univ Berlin, Klinikum Benjamin Franklin, Dept Hematol Oncol, D-12200 Berlin, Germany
[6] Univ Hosp Gottingen, Dept Clin Chem, Gottingen, Germany