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[DOI] [PubMed] [Google Scholar] 120.Swanson J, Gupta S, Lam A, Shoulson I, Lerner M, Modi N, et al

Caffeine : Known for its stimulant effects, caffeine can improve endurance by reducing the perception of effort

Archived from the original (PDF) on 8 March 2014

Oxford, UK: 2011