title: C-type virus particles in pig kidney cell lines.
mesh_terms: D000818:Animals; D002460:Cell Line; D046508:Culture Techniques; D007668:Kidney; D009052:Leukemia Virus, Murine / Q000254:growth & development / Q000302:isolation & purification* / Q000472:pathogenicity; D008854:Microscopy, Electron; D013552:Swine