Genotyping of SAGE was done using the Illumina 1M platform using blood samples deposited at the Rutgers University Cell and DNA Repository (http://www.rucdr.org) and was performed at the Johns Hopkins Center for Inherited Disease Research (CIDR) using Illumina Human1Mv1_C BeadChips and the Illumina Infinium II assay protocol. SNP calls were made using Illumina BeadStudio Genotyping Module v3.1.14. Strict quality-control standards were implemented, and genotypes were released by CIDR for 1,040,106 SNPs (99.15% of attempted). Further details are provided in the comprehensive data cleaning report posted at dbGaP http://www.ncbi.nlm.nih.gov/projects/gap/cgi-bin/document.cgi?study_id=phs000092.v1.p1&phv=22928&phd=2274&pha=&pht=116&phvf=&phdf=20&phaf=&phtf=&dssp=1&consent=&temp=1.