PT - JOURNAL ARTICLE AU - Kyle Steenland TI - Marginal structural models to control for time-varying confounding in occupational and environmental epidemiology AID - 10.1136/oemed-2013-101629 DP - 2013 Sep 01 TA - Occupational and Environmental Medicine PG - 601--602 VI - 70 IP - 9 4099 - http://oem.bmj.com/content/70/9/601.short 4100 - http://oem.bmj.com/content/70/9/601.full SO - Occup Environ Med2013 Sep 01; 70