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Blood type tied to risk of stroke

Two variants in ABO, a known stroke locus, were linked with early-onset ischemic stroke risk, a meta-analysis of genome-wide association studies (GWAS) showed. The variants tagged blood type subgroups O1 and A1, and effect sizes were significantly larger in early-onset (under age 60) than late-onset stroke, reported Braxton PhD, Mitchell, MPH, of University of Maryland […]

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