Scientific Investigations
Clinical and Physiological Correlates of Caffeine and Caffeine Metabolites in Primary Insomnia
Mark R. Youngberg, B.S.; Irina O. Karpov, M.S.; Amy Begley, M.A.; Bruce G. Pollock, M.D., Ph.D.; Daniel J. Buysse, M.D.
Sleep Medicine Institute and Neuroscience Clinical and Translational Research Center, University of Pittsburgh School of Medicine, Pttsburgh, PA
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