Lin, Hualiang, Guo, Yanfei, Salinas-Rodriguez, Aaron, Yawson, Alfred E., Arokiasamy, Perianayagam, Manrique-Espinoza, Betty Soledad, Biritwum, Richard B., Rule, Stephen P., Minicuci, Nadia, Naidoo, Nirmala, Chatterji, Somnath, Qian, Zhengmin, Kowal, Paul, Ma, Wenjun, Wu, Fan, Airhihenbuwa, Collins O., Di, Qian, Zheng, Yang, Zhao, Xing, Vaughn, Michael G., Howard, Steven, Schootman, Mario. Cambridge University Press; 2017. Exposure to air pollution and tobacco smoking and their combined effects on depression in six low- and middle-income countries.