E Bollegraaf. Show Affiliations »
Abstract
Mesh: See more » CanadaCross-Sectional StudiesHumansInfluenza A virus/isolation & purificationInfluenza B virus/isolation & purificationInfluenza, Human/epidemiology
Year: 1988 PMID: 3266585
Source DB: PubMed Journal: Can Dis Wkly Rep ISSN: 0382-232X