Table 1. Distribution of subjects by general characteristics and respiratory findings
Table 2. Distribution of subjects by general characteristics and respiratory findings among workers with abnormal chest x-ray
Table 3. Mean concentrations of respirable dusts by working process
Table 4. Abnormality rate in pulmonary function test and chest X-ray by general characteristics
Table 5. Risk factors of abnormality in chest X-ray findings
Table 6. Affecting factors on FVC and FEV1/FVC in pulmonary function test
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