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Comparison between cohorts vaccinated and unvaccinated against influenza and pneumococcal infection.
This study characterizes possible confounders that might make cohorts vaccinated and unvaccinated against influenza and pneumococcal infection different at baseline, with the hypothesis that the two cohorts are comparable. The similarity between health and demographic data was analysed by a randomiz...
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| Hlavní autoři: | , |
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| Médium: | Artigo |
| Jazyk: | Inglês |
| Vydáno: |
Cambridge University Press
2002
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| Témata: | |
| On-line přístup: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2869913/ https://ncbi.nlm.nih.gov/pubmed/12558334 |
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