Symptoms and Medication Use in Children with Asthma and Traffic-Related Sources of Fine Particle Pollution
Janneane F. Gent, Petros Koutrakis, Kathleen Belanger, Elizabeth Triche, Theodore R. Holford, Michael B. Bracken, and Brian P. Leaderer
Environ Health Perspect. 2009 July; 117(7): 1168–1174. Published online 2009 March 31. doi: 10.1289/ehp.0800335.PMCID: PMC2717146