%0 Journal Article %T Childhood Asthma in Beijing, China: A Population-based Case-Control Study %A Zheng, Tongzhang %A Niu, Shiru %A Lu, Baoyu %A Fan, Xiu’e %A Sun, Fengying %A Wang, Jinping %A Zhang, Yawei %A Zhang, Bing %A Owens, Patricia %A Hao, Lanying %A Li, Yingdong %A Leaderer, Brian %J American Journal of Epidemiology %V 156 %N 10 %P 977-983 %@ 0002-9262 %D 2002-11-15 %I Oxford University Press %~ DeepDyve