defined:

Cancer of the developing blood cells in the bone marrow. Leukemia leads to rampant overproduction of white blood cells (leukocytes); symptoms usually include anemia, fever, enlarged liver, spleen, and/or lymph nodes.

explained:

Listen to a detailed explanation.

Dr. Pu Paul Liu, of the National Human Genome Research Institute's Genetics and Molecular Biology Branch, defines leukemia.

related
terms:

cancer

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