[Volume 50, Pages 1-116, December 2017] <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdf77&p1=www.sciencedirect.com/science/journal/09553959/50/supp/C&dgcid=raven_sd_via_email> International Journal of Drug Policy<http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdf7a&p1=www.sciencedirect.com/science/journal/09553959&dgcid=raven_sd_via_email> Volume 50, Pages 1-116, December 2017<http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdf7f&p1=www.sciencedirect.com/science/journal/09553959/50/supp/C&dgcid=raven_sd_via_email> Editors' Choice From ecstasy to MDMA: Recreational drug use, symbolic boundaries, and drug trends <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S095539591730244X&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Original Research Article Pages 1-8 Marit Edland-Gryt, Sveinung Sandberg, Willy Pedersen Commentary The need for accuracy and validity in research on nightlife and drinking: A commentary on Devilly et al. and recommendations for future research <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S0955395917302797&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Pages 36-40 Peter G. Miller, Tanya Chikritzhs, Nicolas Droste, Amy Pennay, Stephen Tomsen 'Beyond the willing & the waiting' - The role of peer-based approaches in hepatitis C diagnosis & treatment <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S0955395917302633&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Pages 111-115 Charles Henderson, Annie Madden, Jenny Kelsall Research Papers The impact of harm reduction programs and police interventions on the number of syringes collected from public spaces. A time series analysis in Barcelona, 2004-2014 <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S0955395917302475&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Original Research Article Pages 11-18 A. Espelt, J.R. Villalbí, M. Bosque-Prous, O. Parés-Badell, M. Mari-Dell'Olmo, M.T. Brugal 'Affording' new approaches to couples who inject drugs: A novel fitpack design for hepatitis C prevention <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S0955395917302037&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Original Research Article Pages 19-35 Suzanne Fraser, Carla Treloar, Sandra Gendera, Jake Rance Common and differential factors associated with abstinence and poly drug use among Australian adolescents <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S095539591730289X&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Original Research Article Pages 41-47 Simone Pettigrew, Michelle Jongenelis, David Lawrence, Wavne Rikkers Exploring the relationship between online buyers and sellers of image and performance enhancing drugs (IPEDs): Quality issues, trust and self-regulation <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S0955395917302827&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Original Research Article Pages 48-55 Katinka van de Ven, Rosa Koenraadt Assessing police officers' attitudes and legal knowledge on behaviors that impact HIV transmission among people who inject drugs <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S0955395917302876&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Original Research Article Pages 56-63 Javier A. Cepeda, Steffanie A. Strathdee, Jaime Arredondo, Maria L. Mittal, Teresita Rocha, Mario Morales, Erika Clairgue, Eliane Bustamante, Daniela Abramovitz, Irina Artamonova, Arnulfo Bañuelos, Thomas Kerr, Carlos L. Magis-Rodriguez, Leo Beletsky An island apart? Risks and prices in the Australian cryptomarket drug trade <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S0955395917302839&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Original Research Article Pages 64-73 Jack Cunliffe, James Martin, David Décary-Hétu, Judith Aldridge Experiences of structural vulnerability among exotic dancers in Baltimore, Maryland: Co-occurring social and economic antecedents of HIV/STI risk <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S0955395917302803&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Original Research Article Pages 74-81 Meredith L. Brantley, Katherine H.A. Footer, Sahnah Lim, Deanna Kerrigan, Susan G. Sherman "Caught with a body" yet protected by law? Calling 911 for opioid overdose in the context of the Good Samaritan Law <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S0955395917302888&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Original Research Article Pages 82-89 Amanda D. Latimore, Rachel S. Bergstein Trends in adolescent alcohol use in the Netherlands, 1992-2015: Differences across sociodemographic groups and links with strict parental rule-setting <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S0955395917302918&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Original Research Article Pages 90-101 Margaretha E. de Looze, Saskia A.F.M. van Dorsselaer, Karin Monshouwer, Wilma A.M. Vollebergh Legal cannabis laws, home cultivation, and use of edible cannabis products: A growing relationship? <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S095539591730292X&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Original Research Article Pages 102-110 Jacob T. Borodovsky, Alan J. Budney Viewpoint Cannabis for personal use in the Supreme Court of Mexico: Legal case and potential for policy change <http://rt2-t.notifications.elsevier.com/r/?id=h401a356,3efdf74,3efdfa3&p1=www.sciencedirect.com/science?_ob=GatewayURL&_method=citationSearch&_version=1&_piikey=S0955395917302451&_origin=RV_SD_TOC_EMAIL&dgcid=raven_sd_via_email> Pages 9-10 Andrés Aguinaco, Aram Barra ? -- The University achieved an overall 5 stars in the QS World University Rankings 2016/17 The University of Stirling is a charity registered in Scotland, number SC 011159.