{{Rsnum
|rsid = 72549346
|geno1=(-;-)
|geno2=(-;GT)
|geno3=(GT;GT)
|Chromosome=22
|Orientation=minus
|Gene=CYP2D6
|position=42523533
|Assembly=GRCh37
|GenomeBuild=37.1
|dbSNPBuild=131
}}a variation in [[CYP2D6]]