Ambient gas concentrations and personal particulate matter exposures: implications for studying the health effects of particles - Sarnat, Jeremy A; Brown, Kathleen W; Schwartz, Joel; Coull, Brent A; Koutrakis, Petros (Epidemiology (Cambridge, Mass.), 2005)
Keywords: Aged; Air Pollutants - adverse effects; Air Pollutants - analysis; Baltimore; Boston; Child; Humans; Particle Size; Regression Analysis; Seasons; Baltimore; Boston