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Use of electronic cigarettes (e-cigarettes) impairs indoor air quality and increases FeNO levels of e-cigarette consumers.
Despite the recent popularity of e-cigarettes, to date only limited data is available on their safety for both users and secondhand smokers. The present study reports a comprehensive inner and outerExpand
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Respiratory symptoms in European animal farmers.
Farmers are known to be at high risk for the development of occupational airway disease. The aim of this European study was to determine which airway symptoms predominate in different types of animalExpand
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The effect of repeated ozone exposures on inflammatory markers in bronchoalveolar lavage fluid and mucosal biopsies.
The aim of this study was to investigate the cellular and biochemical events associated with repeated exposures to ozone. Twenty-three healthy subjects underwent single exposures to 200 ppb ozone andExpand
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Prevalence of respiratory symptoms, bronchial hyperresponsiveness and atopy among adults: west and east Germany.
The prevalence of respiratory symptoms, atopic sensitization and bronchial hyperresponsiveness was compared in a random sample of adults, 20-44 yrs of age, in two cities in West and East Germany,Expand
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Exhaled nitric oxide: independent effects of atopy, smoking, respiratory tract infection, gender and height.
Measurement of exhaled nitric oxide is widely used in respiratory research and clinical practice, especially in patients with asthma. However, interpretation is often difficult, due to commonExpand
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Indoor air contamination during a waterpipe (narghile) smoking session.
The smoke of waterpipe contains numerous substances of health concern, but people mistakenly believe that this smoking method is less harmful and addictive than cigarettes. An experiment wasExpand
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Factor analysis of exercise capacity, dyspnoea ratings and lung function in patients with severe COPD.
In this study we aimed to determine the relationship between exercise capacity, clinical ratings of dyspnoea and lung function parameters in patients with severe chronic obstructive pulmonary diseaseExpand
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Mortality and prognostic factors in patients with obesity‐hypoventilation syndrome undergoing noninvasive ventilation
Objectives.  The incidence of obesity‐hypoventilation syndrome (OHS) has greatly increased over time, but data on long‐term outcome are limited. We investigated survival and prognostic factors inExpand
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Ozone-induced airway inflammatory changes differ between individuals and are reproducible.
To study whether the individual inflammatory response to ozone was reproducible, dose-dependent, and time-dependent, we performed two exposures to 250 ppb ozone, one to 125 ppb and one to filteredExpand
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Telomere length in circulating leukocytes is associated with lung function and disease
Several clinical studies suggest the involvement of premature ageing processes in chronic obstructive pulmonary disease (COPD). Using an epidemiological approach, we studied whether acceleratedExpand
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