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Details of the genomic region of the CR1 gene. The linkage disequilibrium (LD) between (A) the single nucleotide polymorphisms examined, and (B) the existing haplotypes with corresponding frequencies. Two haploblocks are shown with strong LD (red blocks present LD > 95%). (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)
