1. Office for National Statistics. Deaths related to drug poisoning in England and Wales: 2015 registrations. Deaths related to drug poisoning in England and Wales from 1993 onwards, by cause of death, sex, age and substances involved in the death. London: Office for National Statistics; 2016.
2. An overview of systematic reviews of the effectiveness of opiate maintenance therapies: available evidence to inform clinical practice and research;L Amato;J Subst Abuse Treat,2005
3. Survival and cessation in injecting opiate users, a prospective observational study of outcomes and the effect of opiate substitute treatment;J Kimber;BMJ,2010
4. Opiate substitution treatment and HIV transmission in people who inject drugs: systematic review and meta-analysis;GJ MacArthur;BMJ,2012
5. Needle syringe programmes and opioid substitution therapy for preventing hepatitis C transmission in people who inject drugs;L Platt;Cochrane Database Syst Rev,2017