X Bria Ferré

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OBJECTIVE To assess the effectiveness of systematic pneumococcus vaccination (PV) in the over-65s by comparing rates of incidence and severity of the cases of pneumonia caught in the community (PCC), in two cohorts-those vaccinated (VC) and those not (NVC). DESIGN Multi-centre study of cohorts. SETTING Primary Health Care. PARTICIPANTS All those over(More)
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