title: Self-selection and evaluation of influenza vaccination effectiveness among elderly.
authors.forename: Byung-Kwang
authors.initials: BK
authors.lastname: Yoo
authors.forename: Scott
authors.initials: S
authors.lastname: Grosse
authors.forename: Kevin D
authors.initials: KD
authors.lastname: Frick
mesh_terms: D000368:Aged; D015982:Bias; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage* / Q000276:immunology*; D007251:Influenza, Human / Q000453:epidemiology / Q000276:immunology / Q000517:prevention & control*; D012648:Self Care; D014611:Vaccination / Q000706:statistics & numerical data*
chemical_list: D007252:Influenza Vaccines