TY - JOUR A1 - Levy, D A1 - Sheppard, L A1 - Checkoway, H A1 - Kaufman, J A1 - Lumley, T A1 - Koenig, J A1 - Siscovick, D T1 - A case-crossover analysis of particulate matter air pollution and out-of-hospital primary cardiac arrest. Y1 - 2001/03/ N1 - R827355C001 N1 - R827355 JF - EPIDEMIOLOGY J1 - EPIDEMIOLOGY VL - 12 IS - 2 SP - 193 EP - 199 ER - TY - JOUR A1 - Levy, D A1 - Lumley, T A1 - Sheppard, L A1 - Kaufman, J A1 - Checkoway, H T1 - Referent selection in case-crossover analyses of acute health effects of air pollution. Y1 - 2001/03/ N1 - R827355C001 N1 - R827355 N1 - R825173 JF - EPIDEMIOLOGY J1 - EPIDEMIOLOGY VL - 12 IS - 2 SP - 186 EP - 192 ER - TY - JOUR A1 - Lumley, T A1 - Sheppard, L T1 - Assessing seasonal confounding and model selection bias in air pollution epidemiology using positive and negative control analyses. Y1 - 2000/11/ N1 - R827355C001 N1 - R827355 N1 - R825173 N1 - R827355C009 JF - ENVIRONMETRICS J1 - ENVIRONMETRICS VL - 11 IS - 6 SP - 705 EP - 717 ER - TY - JOUR A1 - Sheppard, L A1 - Kaufman, J T1 - Sorting out the role of air pollutants in asthma initiation. Y1 - 2000/03/ N1 - R827355C001 N1 - R827355 N1 - R827355C009 JF - EPIDEMIOLOGY J1 - EPIDEMIOLOGY VL - 11 IS - 2 SP - 100 EP - 101 ER - TY - JOUR A1 - Sheppard, L A1 - Levy, D A1 - Checkoway, H T1 - Correcting for the effects of location and atmospheric conditions on air pollution exposures in a case-crossover study. Y1 - 2001/03/ N1 - R827355C001 N1 - R827355 N1 - R825173 N1 - R827355C009 JF - JOURNAL OF EXPOSURE ANALYSIS AND ENVIRONMENTAL EPIDEMIOLOGY J1 - J EXPO ANAL ENV EPID J2 - J.Expo.Anal.Environ.Epidemiol. J3 - J Expo Anal Environ Epidemiol VL - 11 IS - 2 SP - 86 EP - 96 PB - Nature Publishing Group ER -