Citation:
Huaiyu Tian, Yonghong Liu, Hongbin Song, Chieh-Hsi Wu, Bingying Li, Moritz UG Kraemer, Pai Zheng, Xing Yan, Guang Jia, Yuxin Zheng, and others. 2020. “Risk of COVID-19 is associated with long-term exposure to air pollution.” medRxiv.