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Main characteristics of the SNP databases currently accessed by SPSmart
| Database | SNPs | Populations | Web Address |
| HapMap Phase II | 4,098,495 | 4 | http://hapmap.org/genotypes/ |
| HapMap Phase III | 1,614,792 | 11 | http://hapmap.org/genotypes/ |
| Perlegen | 1,580,349 | 3 | http://genome.perlegen.com/ |
| Stanford HGDP | 660,918 | 52 | ftp://ftp.ceph.fr/hgdp_supp1/ |
| Michigan HGDP | 525,910 | 33 | ftp://ftp.ceph.fr/hgdp_supp2/ |
