TY - GEN AU - Al-Sawaf,O AU - Robrecht,S AU - Bahlo,J AU - Fink,A M AU - Cramer,P AU - V Tresckow,J AU - Lange,E AU - Kiehl,M AU - Dreyling,M AU - Ritgen,M AU - Dürig,J AU - Tausch,E AU - Schneider,C AU - Stilgenbauer,S AU - Wendtner,C M AU - Fischer,K AU - Hallek,M AU - Eichhorst,B TI - Richter transformation in chronic lymphocytic leukemia (CLL)-a pooled analysis of German CLL Study Group (GCLLSG) front line treatment trials SN - 1476-5551 PY - 2021///0113 KW - Adult KW - Aged KW - Aged, 80 and over KW - Biopsy KW - Cell Transformation, Neoplastic KW - genetics KW - Disease Progression KW - Female KW - Genetic Variation KW - Germany KW - Humans KW - Leukemia, Lymphocytic, Chronic, B-Cell KW - Lymphoma KW - etiology KW - Male KW - Middle Aged KW - Neoplasm Grading KW - Neoplasm Staging KW - Prognosis KW - Survival Analysis KW - Time Factors KW - Young Adult N1 - Publication Type: Clinical Trial, Phase II; Clinical Trial, Phase III; Journal Article; Multicenter Study; Research Support, Non-U.S. Gov't UR - https://doi.org/10.1038/s41375-020-0797-x ER -