{{Rsnum
|rsid=4270326
|Gene=ICOS
|Chromosome=2
|position=203956891
|Orientation=plus
|GMAF=0.1373
|Gene_s=ICOS
|Assembly=GRCh38
|GenomeBuild=38.1
|dbSNPBuild=141
|geno1=(C;C)
|geno2=(C;G)
|geno3=(G;G)
}}{{PMID Auto
|PMID=22977635
|Title=Association study between polymorphisms of CD28, CTLA4 and ICOS and non-segmental vitiligo in a Korean population
|OA=1
}}