Distinguishing Between Oral and Transdermal Administration Routes of Methyltestosterone Through Human Urine and Dried Blood Spot Analyses for Doping Control Purposes.

Unintentional doping violations have been reported after secondary skin exposure, including partner contact or contact sports. Methyltestosterone (MT), an anabolic androgenic steroid on the World Anti-Doping Agency Prohibited List, is readily availab…

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