Brazilian policy for influenza vaccination and its impact on the health of the elderly.
Donalisio
Maria Rita
MR
D000208:Acute Disease; D000368:Aged; D001938:Brazil; D006801:Humans; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000517:prevention & control*; D011640:Public Policy
D007252:Influenza Vaccines