Dose-dependent effects of testosterone on sexual function, mood, and visuospatial cognition in older men.
Gray PB, Singh AB, Woodhouse LJ, Storer TW, Casaburi R, Dzekov J, Dzekov C, Sinha-Hikim I, Bhasin S. Dose-dependent effects of testosterone on sexual function, mood, and visuospatial cognition in older men. J Clin Endocrinol Metab. 2005 Jul; 90(7):3838-46.