This is one of the SNPs reported by NutraHacker.
[PMID 16848906] Genetic polymorphisms in monoamine neurotransmitter systems show only weak association with acute post-surgical pain in humans.
[PMID 18574484] The complex global pattern of genetic variation and linkage disequilibrium at catechol-O-methyltransferase.
[PMID 19015200] Polymorphisms in estrogen- and androgen-metabolizing genes and the risk of gastric cancer.
[PMID 19693267] Financial and psychological risk attitudes associated with two single nucleotide polymorphisms in the nicotine receptor (CHRNA4) gene.
[PMID 19772600] A comparison of classification methods for predicting Chronic Fatigue Syndrome based on genetic data.
[PMID 21423693] Effect sizes in experimental pain produced by gender, genetic variants and sensitization procedures.
[PMID 25927430] Association of DRD3, COMT, and SLC6A4 Gene Polymorphisms with Type 2 Diabetes in Southern Chinese: A Hospital-Based Case-Control Study