Health status of a group of sewage treatment workers in Toronto, Canada

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      <subfield code="a">Fifty randomly selected workers in a sewage treatment plant using a heat treatment method for processing sewage sludge in Toronto, canada were assessed. This investigation revealed that many workers reported "influenza-like" symptoms, cough, sputum production, wheezing, sore throat and skin complaints. the workers tended to have somewhat reduced lung function</subfield>
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      <subfield code="g">Vol. 49, nº 7, July 1988 ; p. 346-350</subfield>
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