Impact of air pollutants on emergency department visits due to first aid in Guangzhou, 2017
BU Li, JIANG Si-li, LV Jia-yun, LIU Peng-da, WU Yan, LUO Lin-feng, SHI Tong -xing
South China Journal of Preventive Medicine . 2019, (2): 119 -123 .  DOI: 10.13217/j.scjpm.2019.0119