PT - JOURNAL ARTICLE AU - DJH TI - Recommended health-based occupational exposure limits for respiratory irritants AID - 10.1136/thx.40.6.447 DP - 1985 Jun 01 TA - Thorax PG - 447--447 VI - 40 IP - 6 4099 - http://thorax.bmj.com/content/40/6/447.1.short 4100 - http://thorax.bmj.com/content/40/6/447.1.full SO - Thorax1985 Jun 01; 40