Association between long-term exposure to air pollution and sleep disorder in Chinese children: the Seven Northeastern Cities study. Issue 9 (24th July 2018) - Lawrence, Wayne R; Yang, Mo; Zhang, Chuan; Liu, Ru-Qing; Lin, Shao; Wang, Si-Quan; Liu, Yimin; Ma, Huimin; Chen, Duo-Hong; Zeng, Xiao-Wen; Yang, Bo-Yi; Hu, Li-Wen; et al.