I've found this link with 4 articles about doping cases. http://www.helium.com/items/74980-histo ... nal-sports
EPO is a glycoprotein hormone that controls erythropoiesis, or red blood cell production. It could be used as in endurance sports such as cycling, rowing, distance running, race walking, cross country skiing, biathlon, triathlons, and, most recently, billiards and it is associated with an increased risk of adverse cardiovascular complications.
A steroid is a terpenoid lipid characterized by its sterane core and additional functional groups. Steroids exert a wide variety of effects mediated by slow genomic as well as by rapid nongenomic mechanisms. Effects: infertility, breast development, shrinking of the testicles, male-pattern baldness, severe acne and cysts
Growth hormone (GH) is a protein-based poly-peptide hormone. It stimulates growth and cell reproduction and regeneration in humans and other animals. Prolonged GH excess thickens the bones of the jaw, fingers and toes.