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Roberts, Walter, Phillip L. Marotta, Terril L. Verplaetse, MacKenzie R. Peltier, Catherine Burke, Vijay A. Ramchandani, ja Sherry A. McKee. "A Prospective Study of the Association between Rate of Nicotine Metabolism and Alcohol Use in Tobacco Users in the United States." Drug Alcohol Depend 2020.

Roberts, Walter, et al. "A Prospective Study of the Association between Rate of Nicotine Metabolism and Alcohol Use in Tobacco Users in the United States." Drug Alcohol Depend 2020.