[1] Univ Ulm, Ulm, Germany
[2] Tech Univ Munich, Inst Med Stat & Epidemiol, Munich, Germany
[3] Marmheimer Onkol Praxis, Mannheim, Germany
[4] Univ Hosp, Essen, Germany
[5] Univ Med Ctr Freiburg, Dept Hematol Oncol, Freiburg, Germany
[6] Med Klin V Univ Klinikum Heidelberg, Heidelberg, Germany
[7] Med Univ Vienna, Div Hematol & Hemostaseol, Dept Internal Med 1, Vienna, Austria
[8] Univ Heidelberg, Dept Hematol Oncol, Mannheim, Germany
[9] Univ Gottingen, Dept Hem & Onc, Gottingen, Germany
[10] Internist Gemeinschaftspraris, Kassel, Germany
[11] Praxis Hematol & Oncol, Wurzburg, Germany
[12] Univ Cologne, Dept Internal Med 1, Cologne, Germany