title: Spontaneous production of murine type C virus particles by mouse Rous sarcoma cells after long-term in vitro cultivation.
mesh_terms: D000818:Animals; D002460:Cell Line; D017988:Gammaretrovirus; D051379:Mice; D008815:Mice, Inbred Strains; D008854:Microscopy, Electron; D001357:Sarcoma, Avian / Q000382:microbiology*