title: Are viruses concerned in the etiology of human leukemia?
mesh_terms: D002454:Cell Differentiation; D002471:Cell Transformation, Neoplastic; D002499:Centrifugation, Density Gradient; D004254:DNA Nucleotidyltransferases / Q000378:metabolism; D004279:DNA, Viral / Q000096:biosynthesis; D005815:Genetic Code; D006801:Humans; D007938:Leukemia / Q000382:microbiology*; D008214:Lymphocytes / Q000648:ultrastructure; D008854:Microscopy, Electron; D008861:Microsomes / Q000648:ultrastructure; D009693:Nucleic Acid Hybridization; D012328:RNA Viruses / Q000472:pathogenicity; D012367:RNA, Viral / Q000378:metabolism; D012194:RNA-Directed DNA Polymerase / Q000378:metabolism; D012190:Retroviridae / Q000302:isolation & purification* / Q000472:pathogenicity; D014461:Ultracentrifugation; D014779:Virus Replication
chemical_list: D004279:DNA, Viral; D012367:RNA, Viral; D004254:DNA Nucleotidyltransferases; D012194:RNA-Directed DNA Polymerase