1. Reed JC . Molecular biology of chronic lymphocytic leukemia Semin Oncol 1998 25: 11–18
2. Montserrat E, Sanchez-Bisono J, Vinolas N, Rozman C . Lymphocyte doubling time in chronic lymphocytic leukaemia: analysis of its prognostic significance Br J Haematol 1986 62: 567–575
3. Hallek M, Langenmayer I, Nerl C, Knauf W, Dietzfelbinger H, Adorf D, Ostwald M, Busch R, Kuhn-Hallek I, Thiel E, Emmerich B . Elevated serum thymidine kinase levels identify a subgroup at high risk of disease progression in early, nonsmoldering chronic lymphocytic leukemia Blood 1999 93: 1732–1737
4. Kimby E, Mellstedt H, Nilsson B, Tribukait B, Björkholm M, Holm G . S-phase lymphocytes in chronic lymphocytic leukemia (CLL) in relation to immunoglobulin isotypes on the leukemic clone and to disease activity Leukemia 1987 1: 432–436
5. Collins RJ, Verschuer LA, Harmon BV, Prentice RL, Pope JH, Kerr JF . Spontaneous programmed death (apoptosis) of B-chronic lymphocytic leukaemia cells following their culture in vitro Br J Haematol 1989 71: 343–350