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The prevalence of asthma and allergies including atopy has increased during the past decades, particularly in westernized countries. The rapid rise in the prevalence of such diseases cannot be explained by genetic factors alone. Rapid urbanization and industrialization throughout the world have increased air pollution and population exposures, so that most epidemiologic studies are focusing on possible...
The aim of this work was to describe the results of a simple quality control procedure for the flow–volume curve adopted in a multicentre epidemiological study (PEACE).In 14 centres, 8–15 individuals (n=157) performed forced vital capacity (FVC) manoeuvres following a standard protocol with both the local spirometer/pneumotachograph and a portable spirometer (i.e. the ‘reference instrument’ for this...
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