Chen Chen LS LS Xian Xian H H Grucza Grucza RA RA Nicotine dependence and comorbid psychiatric disorders: examination of specific genetic variants in the CHRNA5-A3-B4 nicotinic receptor genes Nicotine dependence and comorbid psychiatric disorders: examination of specific genetic variants in the CHRNA5-A3-B4 nicotinic receptor genes Drug Alcohol Depend Drug Alcohol Depend 2012 2012 123 123 Suppl 1 Suppl 1 S42 S42 S51 S51 supplied-pmid 22336398? This evidence concerns the gene CHRNA5 and nicotine dependence.