Chronic Bronchitis in Miners and Non-miners: An Epidemiological Survey of a Community in the Gold-mining Area in the Transvaal1

AUTOR(ES)
RESUMO

An epidemiological survey to determine the prevalence of chronic bronchitis in a mixed mining and non-mining population of Carletonville on the Witwatersrand is described. Eight hundred and twenty-seven men over the age of 35 years were investigated.

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