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Mahoney A, Evans J (November 2008). "Comparing drug classification systems". AMIA ... Annual Symposium Proceedings. AMIA Symposium: 1039. PMID18999016.
Imming P, Sinning C, Meyer A (Oct 2006). "Drugs, their targets and the nature and number of drug targets". Nature Reviews. Drug Discovery. 5 (10): 821–34. doi:10.1038/nrd2132. PMID17016423. S2CID8872470.
Imming P, Sinning C, Meyer A (Oct 2006). "Drugs, their targets and the nature and number of drug targets". Nature Reviews. Drug Discovery. 5 (10): 821–34. doi:10.1038/nrd2132. PMID17016423. S2CID8872470.