title: A summary of influenza activity in Canada, 1987-1988 season.
authors.forename: E
authors.initials: E
authors.lastname: Bollegraaf
mesh_terms: D002170:Canada; D003430:Cross-Sectional Studies; D006801:Humans; D009980:Influenza A virus / Q000302:isolation & purification; D009981:Influenza B virus / Q000302:isolation & purification; D007251:Influenza, Human / Q000453:epidemiology*