Definition: Leukemia is a type of blood cancer that occurs in the blood cells called leukocytes. It's characterized by abnormal growths or changes in the white blood cells, which are responsible for fighting off infections and foreign invaders in the body. The specific cause of leukemia is not fully understood, but it is believed to be caused by abnormalities in the DNA or chromosome structure within the cells. This can occur due to genetic mutations, environmental factors, or a combination of both. Leukemia can also
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