title: Lack of significant visible C-type virus activation in the bone marrow and thymus of mice given a leukaemogenic dose of methylnitrosourea.
mesh_terms: D000818:Animals; D001853:Bone Marrow / Q000382:microbiology*; D001854:Bone Marrow Cells; D002273:Carcinogens; D005260:Female; D008223:Lymphoma; D051379:Mice; D008815:Mice, Inbred Strains; D008854:Microscopy, Electron; D009607:Nitrosourea Compounds / Q000494:pharmacology*; D009858:Oncogenic Viruses / Q000032:analysis*; D012328:RNA Viruses / Q000032:analysis; D012190:Retroviridae / Q000032:analysis; D013950:Thymus Gland / Q000166:cytology / Q000382:microbiology*
chemical_list: D002273:Carcinogens; D009607:Nitrosourea Compounds