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  • Title: [Relationship between work in nitrogen-processing plants and chronic bronchitis including bronchial hypersensitivity].
    Author: Gondorowicz K, Rozniecki J.
    Journal: Med Pr; 1981; 32(1):45-50. PubMed ID: 7289860.
    Abstract:
    The examination involved 55 men exposed to NH3, 60 exposed to NO2 and NH3 and 98 controls. Symptoms of chronic cough and (or) expectoration were found in 8 controls and 18 exposed workers. Significant differences refer only to smokers. Bronchial overreactivity was found in 23.5% controls and in 21.1% of those exposed. The authors conclude that in smokers exposed to NO2 and NH3 chronic bronchitis prevalence is greater whereas occupational exposure did not contribute to an increased number of those suffering from bronchial overreactivity.
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