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Ambient air pollution and respiratory emergency department visits.
Peel JL, Tolbert PE, Klein M, Metzger KB, Flanders WD, Todd K, Mulholland JA, Ryan PB, Frumkin H. Peel JL, et al. Among authors: metzger kb. Epidemiology. 2005 Mar;16(2):164-74. doi: 10.1097/01.ede.0000152905.42113.db. Epidemiology. 2005. PMID: 15703530