title: Evidence of precursors of defective measles virus.
mesh_terms: D002250:Carbon Radioisotopes; D002460:Cell Line; D002499:Centrifugation, Density Gradient; D003588:Cytopathogenic Effect, Viral; D003609:Dactinomycin; D003673:Defective Viruses; D008459:Measles virus; D012367:RNA, Viral / Q000302:isolation & purification; D014020:Tissue Extracts; D014316:Tritium; D014529:Uridine / Q000378:metabolism; D014776:Virus Cultivation
chemical_list: D002250:Carbon Radioisotopes; D012367:RNA, Viral; D014020:Tissue Extracts; D014316:Tritium; D003609:Dactinomycin; D014529:Uridine