Study Search Results Your query returned 2 results. Series results are grouped under the most relevant study. You can ungroup series results. Use the search box below to revise your search, or start a new search. Results per page: 25 50 100 Sort by: Study Relevance Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded Variable Relevance (?) Study Title/Investigator 1. Criminal Justice Drug Abuse Treatment Studies (CJ-DATS): Transitional Care Management (TCM), Increasing Aftercare Participation for Parolees, 2004-2008 [United States] (ICPSR 31621) Prendergast, Michael 2. Center for Education and Drug Abuse Research (CEDAR): Etiological and Prospective Family Study in Southwestern Pennsylvania, Baseline Data, 1990-2011 (ICPSR 33444) Tarter, Ralph E.