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Outdoor air pollution and emergency department visits for asthma among children and adults: A case-crossover study in northern Alberta, Canada
BACKGROUND: Recent studies have observed positive associations between outdoor air pollution and emergency department (ED) visits for asthma. However, few have examined the possible confounding influence of aeroallergens, or reported findings among very young children. METHODS: A time stratified cas...
Autores principales: | , , , |
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Formato: | Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2007
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2254596/ https://www.ncbi.nlm.nih.gov/pubmed/18157917 http://dx.doi.org/10.1186/1476-069X-6-40 |