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Risk of severe life threatening asthma and beta agonist type: an example of confounding by severity.
BACKGROUND: A study was undertaken to test the hypothesis that a particular inhaled beta agonist, fenoterol, increases the incidence of severe life threatening asthma. METHODS: A retrospective cohort was assembled comprising 655 patients with asthma aged 15-55 years who attended a single Auckland ho...
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| Main Authors: | , , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
1996
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC1090519/ https://ncbi.nlm.nih.gov/pubmed/8958891 |
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