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A nodular interstitial fibrosis occurring in workers who are exposed to asbestos fibers long-term
Cigarette smoking increases the prevalence of pleural and parenchymal changes and markedly increases the incidence of lung carcinoma
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Inexorably progressive dyspnea, inspiratory crackles
Clubbing and cyanosis present in some patients
Lower lung zones involved more than upper lung zones
Pulmonary function tests typically show a restrictive defect and reduced diffusing capacity
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