STEAP1 and B-cell chronic lymphocytic leukemia: Dynamics of 9 of the 117 detected MAE-specific CD8+ T cell populations (the CTAs MAGE-A10 SLL, TAG-1 SLG, TRAG-3 ILL, the differentiation antigen TRP-2 SVY and the overexpressed antigens STEAP1 FLY, P-cadherin FII, Telomerase RLF, Telomerase ILA and Tyrosinase CLL) were identified as most informative for predicting clinical outcome by regression analysis.