title: Leukemia - definition and characterization from the comparative viewpoint.
mesh_terms: D000818:Animals; D002455:Cell Division; D003588:Cytopathogenic Effect, Viral; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000150:complications; D007938:Leukemia / Q000139:chemically induced; D007945:Leukemia, Lymphoid / Q000276:immunology; D007953:Leukemia, Radiation-Induced; D008213:Lymphocyte Activation; D008214:Lymphocytes / Q000276:immunology; D008228:Lymphoma, Non-Hodgkin / Q000276:immunology; D008264:Macrophages / Q000276:immunology; D051379:Mice; D008814:Mice, Inbred NZB; D009101:Multiple Myeloma; D009154:Mutation; D012190:Retroviridae