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