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Nasopharyngeal carriage of pneumococci four years after community-wide vaccination with PCV-7 in The Gambia: long-term evaluation of a cluster randomized trial.
Roca A, Dione MM, Bojang A, Townend J, Egere U, Darboe O, Howie SR, Hill PC, Adegbola RA, Greenwood BM, Antonio M. Roca A, et al. Among authors: townend j. PLoS One. 2013 Sep 27;8(9):e72198. doi: 10.1371/journal.pone.0072198. eCollection 2013. PLoS One. 2013. PMID: 24086259 Free PMC article. Clinical Trial.
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