{{Rsnum
|rsid=73229797
|Chromosome=4
|Orientation=plus
|geno1=(A;A)
|geno2=(A;G)
|geno3=(G;G)
|Gene=CHRNA9
|position=40334646
|Gene_s=CHRNA9
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
}}{{PMID Auto
|PMID=25142973
|Title=CHRNA9 polymorphisms and smoking exposure synergize to increase the risk of breast cancer in Taiwan
}}