International society of sports nutrition position stand: caffeine and performance - Goldstein, E.; Ziegenfuss, T.; Kalman, D.; Kreider, R.; Campbell, B.; Wilborn, C.; Taylor, L.; Willoughby, D.; Stout J.; Graves, B. S.; Wildman, R.; Ivy, J. L.; et al. (Journal of the International Society of Sports Nutrition, 2010)
Keywords: nutrition; fluid; supplementation; relation; performance; ergogenic aid; USA; biological and medical sciences