Pitfalls in case-control studies of vaccine effectiveness
- PMID: 17918092
- DOI: 10.1086/522285
Pitfalls in case-control studies of vaccine effectiveness
Comment on
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Effectiveness of the 7-valent pneumococcal conjugate vaccine: a population-based case-control study.Clin Infect Dis. 2007 Jun 1;44(11):1436-41. doi: 10.1086/516779. Epub 2007 Apr 16. Clin Infect Dis. 2007. PMID: 17479939
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