"Observational study of gene-disease association. (HuGE Navigator); Significant association with late-onset Alzheimer's disease for 4 SNPs: rs1881747 near DKK1 rs2279420 in ANK3 rs2306402 in CTNNA3 and rs5030882 in CXXC6 in 1 160 cases and 1 389 controls."xsd:string