prov:value
| - The studies that examined nonmalignant respiratory disease (Christie et al. 1987; Dagg et al. 1992; Hanis et al. 1985; Kaplan 1986; Wong et al. 2001a, 2001b) included all respiratory disorders, such as acute infections, diseases of the upper respiratory tract, pneumonia and influenza, asthma, bronchitis, emphysema, COPD, pneumoconiosis and other diseases due to external agents (such as asbestos),
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