Cytogenetic subclone formation and evolution in progressive smoldering multiple myeloma - Merz, Maximilian; Hielscher, Thomas; Schult, David; Mai, Elias K.; Raab, Marc-Steffen; Hillengaß, Jens; Seckinger, Anja; Hose, Dirk; Granzow, Martin; Jauch, Anna; Goldschmidt, Hartmut (Leukemia, 2020)