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A recent study has raised new questions about the independent association of MICA alleles with ankylosing spondylitis (AS).1 This letter highlights some important issues to be discussed in response to this article.
The authors used imputation to genotype MICA and HLA-B27 in patients with AS and controls of European ancestry. The results appeared discordant with the previous report that showed a strong and human leukocyte antigen (HLA)-B27 independent association between MICA*007:01 and AS in US and Chinese cohorts.2 A common finding was a significant high rate of MICA*007 in patient with AS. The …
Contributors XZ and JDR have contributed to the planning, conduct and reporting of the work described in the article.
Competing interests None declared.
Patient consent Not required.
Provenance and peer review Not commissioned; internally peer reviewed.
Data sharing statement No additional data are available.
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