6 below):  − A:  Androsterone  − Etio:  Etiocholanolone (Etio)  − 5αAdiol : 5α-Androstane- 3α,17β-diol − 5βAdiol  : 5β-Androstane- 3α,17β-diol − T:  Testosterone  − E:  Epitestosterone  In addition to  the following ratios:  − T/E − A/T − A/Etio  − 5αAdiol/5βAdiol  − 5αAdiol/E  As detailed in the Laboratory Guidelines  for Quantification of Endogenous Steroids in Blood for the Athlete Biological Passport  (see section 3.