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: Study Relevance Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Variable Relevance (?) Study Title/Investigator 1. Dynamics of Retail Methamphetamine Markets in New York City, 2007-2009 (ICPSR 29821) Wendel, Travis; Curtis, Ric; Khan, Bilal; et al. 2. Risk Factors for AIDS Among Intravenous Drug Users Study, New York City, 1991-1995 [Restricted] (ICPSR 35078) Des Jarlais, Don 3. National Longitudinal Study of Adolescent to Adult Health (Add Health), 1994-2008 [Public Use] (ICPSR 21600) Harris, Kathleen Mullan; Udry, J. Richard 4. General Social Survey, 1972-2012 [Cumulative File] (ICPSR 34802) Smith, Tom W.; Hout, Michael; Marsden, Peter V.