Scarlett, J F Effect of ambient levels of smoke and sulphur dioxide on the health of a national sample of 23 year old subjects in 1981. [electronic resource] - Thorax Jul 1995 - 764-8 p. digital Publication Type: Journal Article ISSN: 0040-6376 Standard No.: 10.1136/thx.50.7.764 doi Subjects--Topical Terms: AdultAir Pollutants--adverse effectsAsthma--etiologyCohort StudiesCough--etiologyEnvironmental Exposure--adverse effectsHumansRespiratory Sounds--etiologySmoke--adverse effectsSulfur Dioxide--adverse effects