Psychotropic analgesic nitrous oxide (PAN) as a probe of the endogenous opioid system in man and for treating substance abuse withdrawal / Mark Gillman -- Substance abuse treatment : new research / Timothy W. Kinlock and Michael S. Gordon -- Contracting, prompting, and reinforcing substance abuse treatment aftercare adherence / Steven J. Lash et al. -- Strategies for implementing evidence-based practice in community substance abuse treatment settings / Roger H. Peters et al. -- Incorporation of regularised urine-based HIV testing in methadone treatment programme for enhancing the effectiveness of HIV prevention in drug users / Lee S.S. et al. -- A comparison between the intercept oral fluid collection device and urinalysis among Baltimore City probationers / George S. Yacoubian, Jr. -- Faith-based substance abuse treatments as a form of informal social control : examining the impact of informal vs. formal social controls on client outcomes / Meridith Thanner et al. -- Treatment issues for dually diagnosed women substance misusers / Christina Van Puymbroeck and Sara E. Gutierres.