Chronic lymphocytic leukemia or CLL causes a slow increase in the number of white blood cells in the bone marrow. The cancerous cells spread from the bone marrow to the blood, and can also affect the lymph nodes and other organs. CLL eventually causes the bone marrow to fail and weakens the immune system.
Learn more about CLL, clinical trials and the latest treatments.
Upcoming EventsSee all events
Saturday, December 7, 2019
Join us for the first daily wrap to hear updates about the day's events from leading hematology experts.