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3 Texas Cooperative Extension Texas A&M University System. 2006. Health hints: Energy and sports drinks, last referenced 4/23/2007.
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5 Texas Cooperative Extension Texas A&M University System. 2006. Health hints: Energy and sports drinks, last referenced 4/23/2007.
6 Texas Cooperative Extension Texas A&M University System. 2006. Health hints: Energy and sports drinks, last referenced 4/23/2007.
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10 Texas Cooperative Extension Texas A&M University System. 2006. Health hints: Energy and sports drinks, last referenced 4/23/2007.
11 Texas Cooperative Extension Texas A&M University System. 2006. Health hints: Energy and sports drinks, last referenced 4/23/2007.
12 Texas Cooperative Extension Texas A&M University System. 2006. Health hints: Energy and sports drinks, last referenced 4/23/2007.
13 Texas Cooperative Extension Texas A&M University System. 2006. Health hints: Energy and sports drinks, last referenced 4/23/2007.
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15 Brown University Health Education. 2005. Caffeine and energy boosting drugs: Energy drinks, last referenced 4/23/2007.