Zalan, E Influenza A2 strains isolated in Ontario: antigenic comparison with classical Asian and Hong Kong strains. [electronic resource] - Canadian Medical Association journal May 1969 - 901-3 p. digital Publication Type: Journal Article ISSN: 0008-4409 Subjects--Topical Terms: AnimalsAntibodies--analysisCricetinaeHumansMiceNeutralization TestsOntarioOrthomyxoviridae--classification