Long-term exposure to air pollution and asthma hospitalisations in older adults: a cohort study
Zorana Jovanovic Andersen, Klaus Bønnelykke, Martin Hvidberg, Steen S Jensen, Matthias Ketzel, Steffen Loft, Mette Sørensen, Anne Tjønneland, Kim Overvad, Ole Raaschou-Nielsen
Thorax Jan 2012, 67 (1) 6-11; DOI: 10.1136/thoraxjnl-2011-200711