title: [Measurement of efficacy of influenza vaccination in elderly individuals. How and why].
authors.forename: Joan
authors.initials: J
authors.lastname: Puig-Barberà
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage*; D009026:Mortality; D014611:Vaccination / Q000706:statistics & numerical data
chemical_list: D007252:Influenza Vaccines