Prevalence of occupational lung disease among Bostwana men formerly employed in the South African mining industry

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      <subfield code="a">Prevalence of occupational lung disease among Bostwana men formerly employed in the South African mining industry</subfield>
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      <subfield code="a">Objective: to determine whether previous health experiences affect the prevalence of occupational lung disease in a semirural Bostwanan community where there is a long history of labour recruitment to South African mines. Method: a cross sectional prevalence study of 304 former miners examined according to a protocol including a questionnaire, chest radiograph, spirometry, and medical examination</subfield>
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      <subfield code="t">Occupational and environmental medicine</subfield>
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      <subfield code="g">Vol. 54, nº 1, January 1997 ; p. 19-26</subfield>
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