%0 Journal Article %T Characteristics of atopic asthma and non-atopic asthma in the Study of Asthma, Genes and the Environment (SAGE) Cohort at 11-13 years %A Pitt J %A Becker AB %A Kozyrskyj A %J Allergy, Asthma & Clinical Immunology %D 2010 %I BioMed Central %R 10.1186/1710-1492-6-s3-p6 %U http://www.aacijournal.com/content/6/S3/P6