title: Ultrastructural observations on the Harvey mouse leukaemia-sarcoma virus.
mesh_terms: D000818:Animals; D005622:Friend murine leukemia virus; D009052:Leukemia Virus, Murine; D007942:Leukemia, Experimental / Q000473:pathology*; D008214:Lymphocytes; D051379:Mice; D008854:Microscopy, Electron; D013154:Spleen / Q000473:pathology; D014779:Virus Replication