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van Amsterdam, Jan, Phillips, Lawrence D., Henderson, Graeme, Bell, James, Bowden-Jones, Owen, Hammersley, Richard, Ramsey, John, Taylor, Polly, Dale-Perera, Annette, Melichar, Jan, van den Brink, Wim and Nutt, David (2015) Ranking the harm of non-medically used prescription opioids in the UK. Regulatory Toxicology and Pharmacology, 73 (3). pp. 999-1004. ISSN 0273-2300
