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Asthma in an Urban Population in Portugal: A prevalence study
BACKGROUND: The prevalence and incidence of asthma are believed to be increasing but research on the true incidence, prevalence and mortality from asthma has met methodological obstacles since it has been difficult to define and diagnose asthma in epidemiological terms. New and widely accepted diagn...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
BioMed Central
2011
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3121634/ https://www.ncbi.nlm.nih.gov/pubmed/21595928 http://dx.doi.org/10.1186/1471-2458-11-347 |