Study Search Results Your query returned 2 results. Results per page: 25 50 100 Sort by: Study Relevance Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Variable Relevance (?) Study Title/Investigator 1. Behavioral Risk Factor Surveillance System (BRFSS), 2003 (ICPSR 34085) United States Department of Health and Human Services. Centers for Disease Control and Prevention 2. Iowa Youth and Families Project, 1989-1992 (ICPSR 26721) Conger, Rand D.; Lasley, Paul; Lorenz, Frederick O.; et al.