Nutt, D.; King, L.A.; Saulsbury, C.; Blakemore, Colin (mars 2007). «Development of a rational scale to assess the harm of drugs of potential misuse». Lancet. 369 (9566): 1047–53. PMID17382831. doi:10.1016/S0140-6736(07)60464-4.
Nutt, D.; King, L.A.; Saulsbury, C.; Blakemore, Colin (mars 2007). «Development of a rational scale to assess the harm of drugs of potential misuse». Lancet. 369 (9566): 1047–53. PMID17382831. doi:10.1016/S0140-6736(07)60464-4.