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APA Citation
Nielsen, S., Roxburgh, A., Bruno, R., Lintzeris, N., Jefferson, A., & Degenhardt, L. (2015). changes in non-opioid substitution treatment episodes for pharmaceutical opioids and heroin from 2002 to 2011. Drug and alcohol dependence, 149, 212–219. http://access.bl.uk/ark:/81055/vdc_100042271052.0x00002c