title: Purification of smallpox vaccine with fluorocarbon.
mesh_terms: D002498:Centrifugation; D005617:Chlorofluorocarbons, Methane; D006846:Hydrocarbons, Halogenated; D008722:Methods; D012900:Smallpox Vaccine / Q000302:isolation & purification*; D012901:Variola virus / Q000472:pathogenicity; D014774:Virulence
chemical_list: D005617:Chlorofluorocarbons, Methane; D006846:Hydrocarbons, Halogenated; D012900:Smallpox Vaccine