The participants were part of a larger study, Ethno-Genetic Diversity and Alcohol Elimination Rates: the Utility of Alcohol Clamping, which evaluated the heritability of acute responses to an alcohol clamp technique. Recruitment techniques used for the parent study included advertising in local newspapers, radio ads, posted flyers, and self referrals within the Washington, DC metropolitan area. Advertising directed potential participants to call the Howard University Alcohol Research Center (HUARC) pre-screening hotline.
