title: [Influenza virus population heterogeneity study in relation to the infecting dosage].
mesh_terms: D000818:Animals; D002499:Centrifugation, Density Gradient; D002642:Chick Embryo; D003673:Defective Viruses / Q000302:isolation & purification / Q000472:pathogenicity; D009980:Influenza A virus / Q000302:isolation & purification / Q000472:pathogenicity*; D014771:Virion / Q000302:isolation & purification / Q000472:pathogenicity
vernacular_title: Izuchenie geterohennosti populiatsii virusa grippa v zavisimosti ot zarazhaiushcheĭ dozy.