Nutt D, King LA, Saulsbury W, Blakemore C (2007). "Development of a rational scale to assess the harm of drugs of potential misuse". Lancet. 369 (9566): 1047–53. doi:10.1016/S0140-6736(07)60464-4. PMID17382831.CS1 maint: multiple names: authors list (link)
huxley.net
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Nutt D, King LA, Saulsbury W, Blakemore C (2007). "Development of a rational scale to assess the harm of drugs of potential misuse". Lancet. 369 (9566): 1047–53. doi:10.1016/S0140-6736(07)60464-4. PMID17382831.CS1 maint: multiple names: authors list (link)