In response to the April 1999 article entitled: "Validation of self report of influenza and pneumococcal vaccination status in elderly outpatients".
Mac Donald
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D000368:Aged; D006801:Humans; D007251:Influenza, Human / Q000517:prevention & control*; D011008:Pneumococcal Infections / Q000517:prevention & control*; D015203:Reproducibility of Results; D014611:Vaccination / Q000706:statistics & numerical data*