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Gaulton A, Bellis LJ, Bento AP, Chambers J, Davies M, Hersey A, Light Y, McGlinchey S, Michalovich D, Al-Lazikani B, Overington JP. (2012). „ChEMBL: a large-scale bioactivity database for drug discovery”. Nucleic Acids Res40 (Database issue): D1100-7. DOI:10.1093/nar/gkr777. PMID21948594.edit
Hajak G, Rodenbeck A, Voderholzer U i dr.. (2001). „Doxepin in the treatment of primary insomnia: a placebo-controlled, double-blind, polysomnographic study”. J Clin Psychiatry62 (6): 453–63. DOI:10.4088/JCP.v62n0609. PMID11465523.