title: Effectiveness of influenza vaccination.
authors.forename: Lone
authors.initials: L
authors.lastname: Simonsen
authors.forename: Cecile
authors.initials: C
authors.lastname: Viboud
authors.forename: Robert J
authors.initials: RJ
authors.lastname: Taylor
mesh_terms: D000368:Aged; D015982:Bias; D006801:Humans; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000401:mortality / Q000517:prevention & control*; D012621:Seasons; D016896:Treatment Outcome
chemical_list: D007252:Influenza Vaccines