Report

Oliver, Philip and Forrest, Robert and Keen, Jenny (2007) Does the combined use of heroin or methadone and other substances increase the risk of overdose? London: National Treatment Agency for Substance Misuse. Research briefing 27.

Oliver, Philip and Horspool, Michelle and Rowse, Georgina and Parry, Mark and Keen, Jenny and Mathers, Nigel (2007) A psychological autopsy study of non-deliberate fatal opiate-related overdose. London: National Treatment Agency for Substance Misuse.