{{Rsnum
|rsid = 28695233
|geno1=(G;G)
|geno2=(G;T)
|geno3=(T;T)
|Chromosome=22
|Orientation=plus
|Gene=CYP2D6
|position=42526561
|Assembly=GRCh37
|GenomeBuild=37.1
|dbSNPBuild=131
}}a variation in [[CYP2D6]]