title: Repeated sequences in human leukemic DNA.
mesh_terms: D002499:Centrifugation, Density Gradient; D002586:Cesium; D004247:DNA / Q000032:analysis*; D006801:Humans; D006824:Hybridization, Genetic; D007938:Leukemia / Q000097:blood*; D007962:Leukocytes / Q000032:analysis*; D008628:Mercury; D008938:Mitosis; D012834:Silver; D014461:Ultracentrifugation
chemical_list: D002586:Cesium; D012834:Silver; D004247:DNA; D008628:Mercury