Publication date 1985-05-00 Published date 22/02/2016 Last updated 22/02/2016 Download the file ChOct87.1024.8196.000.020.Oct1987.8.pdf(570.36 KB) Related Collections from the Archive Worker participation in a respiratory health surveyDISA Archive Related content DISA ArchiveSourceCritical Health Number 12 May 1985