title: [Isolation and identification of virus particles of the RNA type in thymus cells of normal rats].
mesh_terms: D000818:Animals; D001717:Birds; D002415:Cats; D002455:Cell Division; D002471:Cell Transformation, Neoplastic; D004285:Dogs; D000882:Haplorhini; D006801:Humans; D007942:Leukemia, Experimental; D051379:Mice; D008854:Microscopy, Electron; D012328:RNA Viruses / Q000302:isolation & purification*; D012367:RNA, Viral / Q000302:isolation & purification; D051381:Rats; D013950:Thymus Gland / Q000382:microbiology*
chemical_list: D012367:RNA, Viral