The protective effect of community factors on childhood asthma.
Gupta, Ruchi S. MD, MPH a,c; Zhang, Xingyou PhD d; Sharp, Lisa K. PhD e; Shannon, John J. MD f; Weiss, Kevin B. MD, MPH a,b,g
Journal of Allergy & Clinical Immunology.
123(6):1297-1304e2, June 2009.
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