title: Activation of production of infectious tumor virus SV40 in heterokaryon cultures.
mesh_terms: D000818:Animals; D001345:Autoradiography; D002467:Cell Nucleus; D046508:Culture Techniques; D005823:Genetics; D008856:Microscopy, Fluorescence; D013539:Simian virus 40 / Q000472:pathogenicity*; D014776:Virus Cultivation