Study Search Results Your query returned 4 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: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. Most Downloaded (?) Study Title/Investigator 1. Crack, Powder Cocaine, and Heroin: Drug Purchase and Use Patterns in Six Cities in the United States, 1995-1996 (ICPSR 2564) Riley, K. Jack 1 more results in Arrestee Drug Abuse Monitoring (ADAM) Program/Drug Use Forecasting (DUF) Series 2. Dynamics of Retail Methamphetamine Markets in New York City, 2007-2009 (ICPSR 29821) Wendel, Travis; Curtis, Ric; Khan, Bilal; et al. 3. Exploring the Drugs-Crime Connection Within the Electronic Dance Music and Hip Hop Nightclub Scenes in Philadelphia, Pennsylvania, 2005-2006 (ICPSR 21187) Anderson, Tammy; Kavanaugh, Philip R.; Bachman, Ronet; et al. 4. Project on Human Development in Chicago Neighborhoods (PHDCN): Deviance of Peers, Wave 1, 1994-1997 (ICPSR 13585) Earls, Felton J.; Brooks-Gunn, Jeanne; Raudenbush, Stephen W.; et al.