Over the last two decades, liquid chromatography coupled to mass-spectrometry (LC‒MS)
has become the gold standard to perform qualitative and quantitative analyses of small …

For several decades now, the analysis of steroids has been a key tool in the diagnosis and
monitoring of numerous endocrine pathologies. Thus, the available methods used to …

For decades, the class of anabolic androgenic steroids has represented the most frequently
detected do** agents in athletes' urine samples. Roughly 50% of all adverse analytical …

The quantification of a large panel of endogenous steroids in serum by LC–MS/MS
represents a powerful clinical tool for the screening or diagnosis of diverse endocrine …

Abstract Background Volumetric Absorptive Microsampling (VAMS) is emerging as a
valuable technique in the collection of dried biological specimens, offering a potential …

In women, hormonal fluctuations related to the menstrual cycle may impose a great source
of variability for some biomarkers of testosterone (T) administration, which can ultimately …

Testosterone do** remains a prevalent and potent form of drug cheating among elite
athletes. In men, the urine testosterone (T) to epitestosterone (E) ratio (T/E ratio) can identify …

Context Detection of endogenous anabolic androgenic steroids (EAAS), like testosterone
(T), as do** agents has been improved with the launch of the Steroidal Module of the …

The Athlete Biological Passport (ABP) was introduced to complement the direct anti-do**
approach by indirectly outlining the possible use of prohibited substances or methods in …

There has been an immense amount of visibility of do** issues on the international stage
over the past 12 months with the complexity of do** controls reiterated on various …