title: Influenza. Study questions the benefits of vaccinating the elderly.
authors.forename: Jon
authors.initials: J
authors.lastname: Cohen
mesh_terms: D000368:Aged; D000375:Aging; D015982:Bias; D015331:Cohort Studies; D015986:Confounding Factors, Epidemiologic; D004812:Epidemiologic Methods; D006801:Humans; D017589:Immunization Programs; D007252:Influenza Vaccines; D007251:Influenza, Human / Q000401:mortality* / Q000517:prevention & control*; D014481:United States / Q000453:epidemiology
chemical_list: D007252:Influenza Vaccines