[1] Univ Hosp Charite, Berlin, Germany
[2] Univ Hosp Ulm, Ulm, Germany
[3] Univ Hosp Carl Gustav Carus, Med Klin 1, Dresden, Germany
[4] Univ Hosp Freiburg, Freiburg, Germany
[5] Univ Frankfurt, D-6000 Frankfurt, Germany
[6] Hannover Med Sch, D-3000 Hannover, Germany
[7] Univ Munster, D-4400 Munster, Germany
[8] Univ Munich, Klinikum Grosshadern, Med Klin 3, D-8000 Munich, Germany
[9] Univ Mainz Hosp, Mainz, Germany
[10] Univ Leipzig Hosp, Leipzig, Germany
[11] Univ Hosp, Essen, Germany
[12] Deutsch Klin Diagnost, KMT Zentrum, D-6200 Wiesbaden, Germany
[13] Univ Hosp Eppendorf, Bone Marrow Transplantat Ctr, Hamburg, Germany