1. Molecular Genetics of Inversion 16 Leukemia: Implications for Leukemogenesis -- 2. Deletion of Chromosome 5 (5q-) in Leukemia: Current Knowledge -- 3. Bcl-2 Family Proteins and the Regulation of Programmed Cell Death in Leukemia and Lymphoma -- 4. MLL Fusion Genes in the 11q23 Acute Leukemias -- 5. The c-myb Protooncogene: A Novel Target for Human Gene Therapy -- 6. The Role of p53 in Malignancy -- 7. Primitive Hematopoietic Stem and Progenitor Cells in Human Umbilical Cord Blood: An Alternative Source of Transplantable Cells -- 8. Detection of Minimal Residual Disease in ALL: Biology, Methods, and Applications -- 9. Interleukin-6: Biologic Properties and Role in Lymphoproliferative Disorders -- 10. Autologous Bone Marrow Transplantation for Leukemia and Lymphoma -- 11. Retinoblastoma Gene in Malignancy -- 12. Treatment of Relapse After Allogeneic Bone Marrow Transplantation -- 13. Acute Lymphocytic Leukemia: A Comprehensive Review with Emphasis on Biology and Therapy