Study Search Results Your query returned 4 results. Series results are grouped under the most relevant study. You can ungroup series results. Results per page: 25 50 100 Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded (?) 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. National Survey of Midlife Development in the United States (MIDUS II): Cognitive Project, 2004-2006 (ICPSR 25281) Ryff, Carol D.; Lachman, Margie E. 3. Puerto Rican Elderly: Health Conditions (PREHCO) Project, 2002-2003, 2006-2007 (ICPSR 34596) Palloni, Alberto; Luisa Davila, Ana; Sanchez-Ayendez, Melba 4. Sacramento Area Latino Study on Aging (SALSA Study), 1996-2008: Demographic Data (ICPSR 34483) Haan, Mary; Aiello, Allison; Gonzalez, Hector; et al.