. . . . . . . . . . . . "[This approach has identified distinct genetic variants that contribute to nicotine dependence on chromosome 15 in the region of the alpha5-alpha3-beta4 family of nicotinic receptor genes.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2014-02-25"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2014-10-02T12:33:49+02:00"^^ . . . . . . . . . . . "v2.1.0.0" . "v2.1.0" .