T Robak, JZ Blonski, M Kasznicki, J Gora-Tybor, A Dmoszynska, A Skotnicki. The effect of subsequent therapies in patients with chronic lymphocytic leukemia previously treated with prednisone and either cladribine or chlorambucil. Haematologica 2005;90(7):994-996; https://doi.org/10.3324/%x.