Differential time-lag effects of ambient PM2.5 and PM2.5-bound PAHs on asthma emergency department visits. - Hsu, Shih-Chang; Chang, Jer-Hwa; Lee, Chon-Lin; Huang, Wen-Cheng; Hsu, Yuan-Pin; Liu, Chung-Te; Jean, Shio-Shin; Huang, Shau-Ku; Hsu, Chin-Wang (Environmental Science & Pollution Research, 2020)