creased the study of leukemia since the 1930s.
             In the Personal Health Report, the information stated that there are two major types are leukemia: "Lymphocytic leukemia which involves lymphoid committed cells which form and mature in the lymphatic system, and granulocytic leukemia which affects myeloid committed cells which form and mature in the bone marrow" (355). Each of the two types can occur in either acute or chronic form. Acute form usually affects young cells that are still in the process of growing; they can divide very quickly and may speed the progress of the disease. The chronic form involves the mature cells that reproduce in a low rate or the ones that have stopped dividing.
             According to the Home Medical Guide, acute lymphocytic leukemia is most commonly seen in children between the age of two and nine. In this type of leukemia, males are affected more frequently than females. Before treatment was available, the average survival rate is only 5 to 6 months. As treatment developed, more then 95 percent of all children are putted into complete remission. Both adult and childhood disease can be cured in around four years, and the therapy can be discontinued. Chronic lymphocytic leukemia is the most common form of cancer found in the industrialized countries. Like acute lymphocytic, it occurs more frequently in males then in females. The patients that are affected by chronic lymphocytic leukemia are usually older then any other patients with different types of leukemia. The cause of this specific type of disease is still unknown:
             Strong evidence points to problems of function and control in the immune system
             diagnosis is very often discovered by accident in the course of routine blood testing for
             other medical reasons, since fully 25 to 30 percent of newly diagnosed patients have no
             symptoms...the degree of bone marrow infiltration by small lymphocytes is a muc...