Ioniţă, E The effect of vitamin A on some biological properties of type B influenza virus. [electronic resource] - Archives roumaines de pathologie experimentales et de microbiologie - 115-9 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0004-0037 Subjects--Topical Terms: AdsorptionAnimalsAntibodies, Viral--analysisAntigens, Viral--immunologyChick EmbryoGuinea PigsHemagglutination Inhibition TestsHumansImmunizationInfluenza A virus--immunologyInfluenza B virus--drug effectsInfluenza Vaccines--immunologyVitamin A--pharmacology