. . . . . . . "[Consistent with this possibility, human genome-wide association studies have shown that genetic variation in the CHRNA5-CHRNA3-CHRNB4 gene cluster located in chromosome region 15q25, which encode the ?5, ?3 and ?4 nAChR subunits, respectively, increases vulnerability to tobacco addiction and smoking-related diseases.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-19"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:11:34+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .