A Cohort study of workers exposed to formaldehyde in the British chemical industry : an update

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      <subfield code="a">A Cohort study of workers exposed to formaldehyde in the British chemical industry</subfield>
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      <subfield code="a">A cohort study of workers exposed to formaldehyde in the British chemical industry in any one of six factories has been extended after the earlier published report in 1984. A further eight years of follow up to the end of 1989 have been included for the originally reported 7660 workers first employed before 1965, and a first follow up to the same date has been carried out for 6357 workers first employed since 1964. Extensive checking of the database has taken place including records at the factories, the MRC Environmental Epidemiology Unit, and the National Health Service Central Register</subfield>
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      <subfield code="g">nº 9, September 1993 ; p. 827-834</subfield>
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