Study Search Results Your query returned 3 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. (?) Study Title/Investigator 1. Community Health Center: Core Data Project, 2001-2002 (ICPSR 21520) Bradford, Judy 2. New Family Structures Study (ICPSR 34392) Regnerus, Mark 3. Sexual Acquisition and Transmission of HIV Cooperative Agreement Program (SATHCAP), 2006-2008 [United States] Restricted Use Files (ICPSR 29181) Iguchi, Martin Y.; Berry, Sandra H.; Ober, Allison J.; et al.