{{Genotype
|rsid=167771
|allele1=A
|allele2=A
|magnitude=1
}}
Possibly more "Insistence on Sameness" on ADI-R test.[http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3324694/]
Possibly increased FTND nicotine dependence.[http://www.ncbi.nlm.nih.gov/pubmed/22309839?dopt=Abstract]