Hampton, Lee M; Zell, Elizabeth R; Schrag, Stephanie; Cohen, Adam L Sentinel versus population-based surveillance of pneumococcal conjugate vaccine effectiveness. Bulletin of the World Health Organization, 2012, vol.90, n. 8, ISSN 0042-9686.
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Hampton, Lee M; Zell, Elizabeth R; Schrag, Stephanie; Cohen, Adam L Sentinel versus population-based surveillance of pneumococcal conjugate vaccine effectiveness. Bulletin of the World Health Organization, 2012, vol.90, n. 8, ISSN 0042-9686.
|