12 citations
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March 2000 in “Clinical Chemistry” Chronic DHEA supplementation slightly increases testosterone in hair but stays within safe limits.
103 citations
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June 2006 in “British journal of sports medicine” The document concludes that better biomarkers are needed to detect long-term oral testosterone use in athletes.
59 citations
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September 2003 in “Journal of steroid biochemistry and molecular biology/The Journal of steroid biochemistry and molecular biology” Epitestosterone may counteract testosterone's effects and has roles in body processes like prostate growth and hair distribution.
21 citations
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November 2010 in “Talanta” Researchers developed a reliable method to measure testosterone and epitestosterone in urine for medical and anti-doping use.
47 citations
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January 2001 in “Journal of Investigative Dermatology” High testosterone to epitestosterone ratio in hair could predict male-pattern baldness.