On the controversy about the efficacy of the antimeningococcal B vaccine: methodological pitfalls
The present communication analyses methodological problems related to evaluating the protection given by the antimeningococcal B vaccine to children under four years of age in a case-control study carried out in Sao Paulo, Brazil. Detection of a hospital selection bias, among other disturbing featur...
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| Format: | Article |
| Language: | English |
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Escola Nacional de Saúde Pública, Fundação Oswaldo Cruz
1995-01-01
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| Series: | Cadernos de Saúde Pública |
| Subjects: | |
| Online Access: | http://www.scielosp.org/scielo.php?script=sci_arttext&pid=S0102-311X1995000200018 |