الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Leukemias accounts for about one third of all cancers in children. Acute leukemias constitute 97% of all childhood leukemias, of which 75% are acute lymphoblastic leukemia (ALL). The different subtypes of ALL (B- or T-cell lineages) depend on the stage of lymphoid differentiation at which a leukemogenic event occur.
The improved survival of childhood ALL has focused attention on the late complications of antileukemic therapy. Both short and long-term immunologic effects of chemotherapy have been documented in children treated for.