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Research Paper

Immunogenicity and safety of 23-valent pneumococcal polysaccharide vaccine as a booster dose in 12- to 18-month-old children primed with 3 doses of 7-valent pneumococcal conjugate vaccine

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Pages 1859-1865 | Received 14 Nov 2013, Accepted 25 Mar 2014, Published online: 23 Apr 2014