human genome. The re-mapping of SNPs from Phase I of the project identified 21,177 SNPs that had an ambiguous position or some other feature indicative of low reliability; these are not included in the filtered Phase II data release. All genotype data are available from the HapMap Data Coordination Center (http://www.hapmap.org) and dbSNP (http://www.ncbi.nlm.nih.gov/SNP); analyses described in this paper refer to release 21a. Three data sets are available: ‘redundant unfiltered’ contains all genotype submissions, ‘redundant filtered’ contains all submissions that pass QC, and ‘non-redundant filtered’ contains a single QC+ submission for each SNP in each analysis panel.
