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This review’s systematic search of the MEDLINE and Embase® electronic databases of publications from January 1995 to February 2016. We used the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines (Moher et al, 2009) to seek the current state of knowledge about cognition and testosterone (T) in older men and the potential role of T supplementation in age-related cognitive disorders.
