title: Influenza vaccine effectiveness in elderly people.
authors.affiliation: Group Health Research Institute, Seattle, WA 98101, USA. Electronic address: jackson.ml@ghc.org.
authors.forename: Michael L
authors.initials: ML
authors.lastname: Jackson
mesh_terms: D005260:Female; D006801:Humans; D007252:Influenza Vaccines / Q000008:administration & dosage* / Q000276:immunology*; D007251:Influenza, Human / Q000517:prevention & control*; D008297:Male
chemical_list: D007252:Influenza Vaccines