PT - JOURNAL ARTICLE AU - R. Dales AU - L. Chen AU - A.M. Frescura AU - L. Liu AU - P.J. Villeneuve TI - Acute effects of outdoor air pollution on FEV<SUB>1</SUB>: a panel study of schoolchildren with asthma AID - 10.1183/09031936.00138908 DP - 2009 Feb 27 TA - European Respiratory Journal 4099 - http://erj.ersjournals.com/content/early/2009/02/27/09031936.00138908.short 4100 - http://erj.ersjournals.com/content/early/2009/02/27/09031936.00138908.full