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  1. Article

    Gene-Centric Analysis of Serum Cotinine Levels in African and European American Populations

    To date, most genetic association studies of tobacco use have been conducted in European American subjects using the phenotype of smoking quantity (cigarettes per day). However, smoking quantity is a very impr...

    Ajna Hamidovic, Robert J Goodloe, Andrew W Bergen in Neuropsychopharmacology (2012)

  2. Article

    Effects of Acute Tryptophan Depletion on Negative Symptoms and Smoking Topography in Nicotine-Dependent Schizophrenics and Nonpsychiatric Controls

    We studied the effect of acute tryptophan depletion (ATD), which transiently reduces brain serotonin, on negative symptoms and cigarette smoking topography in schizophrenic smokers. Nicotine-dependent schizoph...

    Brian Hitsman, Bonnie Spring, William Wolf, Regina **itore in Neuropsychopharmacology (2005)