[1] GFO Hosp Rhein Berg, Marien Hosp, Dept Urol, Bergisch Gladbach, Germany
[2] Univ Hosp Muenster, Dept Urol, Munster, Germany
[3] Clin Sudostbayern AG, Dept Hematol Oncol & Palliat Care, Clin Traunstein, Traunstein, Germany
[4] Helios Clin Aue, Clin Hematol Oncol & Palliat Med, Aue, Germany
[5] Practice Hematol & Oncol, Dortmund, Germany
[6] GermanOncol GmbH, Hamburg, Germany
[7] Merck Healthcare Germany GmbH, Merck KGaA, Weiterstadt, Germany
[8] Healthcare Business Merck KGaA, Darmstadt, Germany
[9] Med Care Ctr Oncol & Hematol, Cologne, Germany