TY - JOUR A1 - Sarnat, J A A1 - Koutrakis, P A1 - Suh, H H T1 - Assessing the relationship between personal particulate and gaseous exposures of senior citizens living in Baltimore, MD. Y1 - 2000/07/ N1 - R827353 N1 - R827353C001 JF - JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION J1 - J AIR WASTE MANAGE VL - 50 IS - 7 SP - 1184 EP - 1198 ER - TY - JOUR A1 - Sarnat, J A A1 - Brown, K W A1 - Schwartz, J A1 - Coull, B A A1 - Koutrakis, P T1 - Ambient gas concentrations and personal particulate matter exposures: implications for studying the health effects of particles. Y1 - 2005/05/ N1 - R827353 N1 - R827353C001 JF - EPIDEMIOLOGY J1 - EPIDEMIOLOGY VL - 16 IS - 3 SP - 385 EP - 395 ER -