[1] Univ Ulm, Dept Internal Med, Ulm, Germany
[2] Charite Univmed Berlin, Hematol, Oncol & Tumor Immunol, Berlin, Germany
[3] UKE Univ Hamburg Eppendorf KMTZ, Dept Oncol Hematol & BMT Div Pneumol, Hamburg, Germany
[4] Hosp St Elisabeth & St Barbara Halle, Med Oncol, Halle, Germany
[5] UCT Univ, Inst Clin Canc Res IKF Krankenhaus Nordwe, Canc Ctr, Frankfurt, Germany
[6] Philipps Univ Marburg, Dept Gastroenterol & Endocrinol, Marburg, Germany
[7] Praxis Dr L Fischer W Klinikum St Marien Amberg, Amberg, Germany
[8] Oncol Heamatol Det, Gemeinschaftspraxis Haematol Onkol, Dresden, Germany
[9] Univ Koln AoR, Klin Gastroenterol & Hepatol, Cologne, Germany
[10] Oncol Heamatol, Private Practice Memmingen, Memmingen, Germany
[11] SAPV Praxis Dr Vehling Kaiser, Landshut, Germany