Vaccine · 2009 · 102 citations · 20 references
Veterinary MedicineImmunologyInfectious DiseasesImmunizationVaccine ImmunologyVaccinologyAdult ImmunizationVaccinationVaccine DevelopmentVaccine EffectivenessVaccine EfficacyVaccine-preventable DiseasesCase-control Study DesignClinical Effectiveness CriteriaEfficacy In Older AdultsMatched Study DesignsPneumococcal Conjugate VaccinesPneumococcal DiseasePolysaccharide VaccinesVaccination In Older Adults
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