Nutt, D.; King, L. A.; Saulsbury, W.; Blakemore, C. (2007). "Development of a rational scale to assess the harm of drugs of potential misuse". The Lancet369 (9566): 1047–1053. PMID17382831. doi:10.1016/S0140-6736(07)60464-4.
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ncbi.nlm.nih.gov
Nutt, D.; King, L. A.; Saulsbury, W.; Blakemore, C. (2007). "Development of a rational scale to assess the harm of drugs of potential misuse". The Lancet369 (9566): 1047–1053. PMID17382831. doi:10.1016/S0140-6736(07)60464-4.