<p>This study includes SSADDA (Semi Structured Assessment for Drug Dependence and Alcoholism) assessed subjects (mostly unrelated, but including some affected sibling pairs) recruited in the course of several substance dependence genetics projects. The sample includes 1,531 self-reported African-American (AA) subjects, 1,339 self-reported European-American (EA) subjects, and 2 who reported race as "unknown" or "missing".</p>

Substance Dependence GWAS in European- and African - Americans

Substance-Related Disorders study with SNP Genotypes (Array) data on dbGaP (2,872 participants)

Substance Dependence GWAS in European- and African - Americans

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Summary