[1] Univ Clin Heidelberg, Dept Internal Med 4, Heidelberg, Germany
[2] Asklepios Hosp Hamburg Altona, Dept Hematol & Oncol, Hamburg, Germany
[3] Univ Clin Essen, Essen, Germany
[4] Univ Med Ctr Hamburg Eppendorf, Hamburg, Germany
[5] German Canc Res Ctr, Div Biostat, Heidelberg, Germany
[6] Univ Tubingen Hosp, Dept Hematol Oncol & Immunol, Tubingen, Germany
[7] Univ Med Ctr Mainz, Dept Internal Med 3, Mainz, Germany
[8] Katholisches Krankenhaus Hagen, Dept Hematol & Oncol, Hagen, Germany
[9] Coordinat Ctr Clin Trials KKS Heidelberg, Heidelberg, Germany
[10] Heidelberg Univ, Inst Human Genet, Heidelberg, Germany
[11] Asklepios Hosp Hamburg St Georg, Dept Hematol & Oncol, Hamburg, Germany
[12] Helios Hosp Berlin Buch, Berlin, Germany
[13] Univ Hosp Bonn, Bonn, Germany
[14] Community Hosp Bielefeld, Bielefeld, Germany
[15] Klinikum Darmstadt, Internal Med 5, Darmstadt, Germany
[16] Klinikum Ludwigshafen, Med Clin A, Ludwigshafen, Germany
[17] Roswell Park Comprehens Canc Ctr, Buffalo, NY USA
[18] Charite Campus Benjamin Franklin, Dept Internal Med 3, Berlin, Germany
[19] Klinikum Chemnitz, Chemnitz, Germany
[20] Univ Hosp Koln, Dept Internal Med 1, Cologne, Germany