Alhanti, Brooke A., Howard H.  Chang, Andrea  Winquist, James A.  Mulholland, Lyndsey A.  Darrow, and Stefanie Ebelt  Sarnat. 2016. ?Ambient Air Pollution And Emergency Department Visits For Asthma: A Multi-City Assessment Of Effect Modification By Age?. Journal Of Exposure Science & Environmental Epidemiology 26. Journal Of Exposure Science & Environmental Epidemiology: 180?188. doi:10.1038/jes.2015.57.