Outdoor air pollution pregnancy exposures are associated with behavioral problems in China's preschoolers. - Ren, Yunzhao; Yao, Xing; Liu, Yisi; Liu, Suyang; Li, Xiao; Huang, Qing; Liu, Feifei; Li, Na; Lu, Yuanan; Yuan, Zhanpeng; Li, Shiyue; Xiang, Hao (Environmental Science & Pollution Research, 2019)