ABO and malaria: After discarding associated variants under LD and prioritizing associated variants with high proxy LD variants, three SNPs were selected (online Supplementary Figs S1–S3); rs8176703 (9q34.2; ABO), rs2334880 (16q22.2; MARVELD3) and rs372091 (11p15.5; HBB) from the GWAS results in [21], to probe the allele frequencies and relative geographic distribution around and below the equatorial malaria belt.