History of Adolescent Oncology.- Epidemiology and Etiology of Cancer in Adolescents and Young Adults.- Access to Care Before and During Therapy.- Older Adolescents and Young Adults with Cancer, and Clinical Trials: Lack of Participation and Progress in North America.- Acute Lymphoblastic Leukemia.- Acute Myelogenous Leukemia.- Hodgkin Lymphoma.- Non-Hodgkin Lymphoma.- Central Nervous System Tumors.- Soft-Tissue Sarcomas.- Bone Sarcomas.- Malignancies...