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Abstract
Mesh: See more » AdolescentAdultCanada/epidemiologyChildChild, PreschoolCross-Sectional StudiesHumansIncidenceInfantInfluenza A virus/isolation & purificationInfluenza B virus/isolation & purificationInfluenza, Human/epidemiologyInfluenza, Human/microbiologyMiddle AgedPopulation SurveillanceSeasonsVirus Cultivation
Year: 1992 PMID: 1291002
Source DB: PubMed Journal: Can Commun Dis Rep ISSN: 1188-4169