7 citations,
January 2019 in “Journal of Analytical Toxicology” Tramadol and THC-COOH can be detected in hair for several months after stopping use.
May 2017 in “Endocrine Abstracts” Testosterone levels are not linked to erectile dysfunction in young and middle-aged men with HIV.
27 citations,
April 2013 in “Reviews in endocrine and metabolic disorders” The document concludes that using LC-MS/MS for measuring androgens is more accurate than older methods, but it needs careful validation and standardized references to be most effective.
11 citations,
September 2020 in “Steroids” A new method accurately measures steroid hormones in a few hair strands and could help study chronic stress and hair loss.
7 citations,
November 2022 in “Toxics” The method accurately measures 19 steroid hormones in human blood and urine using a small sample and is suitable for large-scale monitoring.